Schedule III (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Real estate assets, beginning balance	$ 3,594,328,000	$ 3,308,306,000	$ 3,341,257,000
Acquisitions, development and improvements	214,959,000	329,675,000	104,199,000
Cost of real estate sold and retired	(12,823,000)	(43,653,000)	(137,150,000)
Real estate assets, ending balance	3,796,464,000	3,594,328,000	3,308,306,000
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated depreciation, beginning balance	901,300,000	832,918,000	782,557,000
Depreciation expense	128,971,000	120,812,000	117,639,000
Real estate sold and retired	(82,704,000)	(52,430,000)	(67,278,000)
Accumulated depreciation, ending balance	947,567,000	901,300,000	832,918,000
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
Total accumulated depreciation per Schedule III	947,567,000	901,300,000	832,918,000
Real estate assets, net, held for sale	0	(32,254,000)	(34,501,000)
Total accumulated depreciation	947,567,000	869,046,000	798,417,000
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,796,464,000	3,594,328,000	3,308,306,000
Development in process exclusive of land included in Schedule III	21,198,000	0	4,524,000
Real estate assets, net, held for sale	0	(124,273,000)	(142,783,000)
Total real estate assets	3,817,662,000	3,470,055,000	3,170,047,000
Atlanta, GA - 1700 Century Circle [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,482,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	2,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,483,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,485,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	591,000
Atlanta, GA - 1700 Century Circle [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 1700 Century Circle [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 1800 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,444,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	29,081,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	13,179,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,444,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	42,260,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	43,704,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	17,806,000
Atlanta, GA - 1800 Century Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 1800 Century Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 1825 Century Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	864,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	303,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	14,392,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,167,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,392,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,559,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,686,000
Atlanta, GA - 1825 Century Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 1825 Century Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 1875 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,924,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,280,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,204,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,204,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,022,000
Atlanta, GA - 1875 Century Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 1875 Century Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 1900 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,744,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	702,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,446,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,446,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,296,000
Atlanta, GA - 1900 Century Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 1900 Century Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 2200 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	14,432,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,672,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	18,104,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	18,104,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,320,000
Atlanta, GA - 2200 Century Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 2200 Century Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 2400 Century Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	406,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,646,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	406,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,646,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,052,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,640,000
Atlanta, GA - 2400 Century Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 2400 Century Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 2500 Century Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	328,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	14,329,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	328,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,329,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,657,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,907,000
Atlanta, GA - 2500 Century Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 2500 Century Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 2500/2635 Parking Garage [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,319,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,319,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,319,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,108,000
Atlanta, GA - 2500/2635 Parking Garage [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 2500/2635 Parking Garage [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 2600 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	10,679,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,971,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,650,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,650,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,205,000
Atlanta, GA - 2600 Century Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 2600 Century Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 2635 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	21,643,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,513,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	26,156,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	26,156,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	10,219,000
Atlanta, GA - 2635 Century Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 2635 Century Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 2800 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	20,449,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,728,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	27,177,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	27,177,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	8,810,000
Atlanta, GA - 2800 Century Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 2800 Century Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 50 Glenlake [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,500,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	20,006,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,944,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,500,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	22,950,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	25,450,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	8,873,000
Atlanta, GA - 50 Glenlake [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 50 Glenlake [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 6348 Northeast Expressway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	275,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,655,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	199,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	275,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,854,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,129,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	789,000
Atlanta, GA - 6348 Northeast Expressway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 6348 Northeast Expressway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 6438 Northeast Expressway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	179,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,216,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	612,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	179,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,828,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,007,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,041,000
Atlanta, GA - 6438 Northeast Expressway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 6438 Northeast Expressway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Bluegrass Lakes I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	816,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	336,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,972,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,152,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,972,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,124,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,159,000
Atlanta, GA - Bluegrass Lakes I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Bluegrass Lakes I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Bluegrass Place I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	491,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,061,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	125,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	491,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,186,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,677,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	854,000
Atlanta, GA - Bluegrass Place I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Bluegrass Place I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Bluegrass Place II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	412,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,583,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	103,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	412,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,686,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,098,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,026,000
Atlanta, GA - Bluegrass Place II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Bluegrass Place II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Bluegrass Valley [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,500,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	374,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,117,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,874,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,117,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,991,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	927,000
Atlanta, GA - Bluegrass Valley [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Bluegrass Valley [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Bluegrass Valley Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	19,711,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(14,810,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,901,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,901,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Atlanta, GA - Century Plaza I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,290,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,567,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,240,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,290,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,807,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,097,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,224,000
Atlanta, GA - Century Plaza I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Century Plaza I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Century Plaza II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,380,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,733,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,222,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,380,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,955,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,335,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,245,000
Atlanta, GA - Century Plaza II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Century Plaza II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Chastain Place I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	451,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	341,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,767,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	792,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,767,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,559,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,153,000
Atlanta, GA - Chastain Place I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Chastain Place I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Chastain Place II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	599,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	194,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,505,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	793,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,505,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,298,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	515,000
Atlanta, GA - Chastain Place II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Chastain Place II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Chastain Place III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	539,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	173,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,318,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	712,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,318,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,030,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	482,000
Atlanta, GA - Chastain Place III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Chastain Place III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Corporate Lakes [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,265,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,243,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,124,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,265,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,367,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,632,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,540,000
Atlanta, GA - Corporate Lakes [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Corporate Lakes [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - General Services Administration [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,100,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(3,100,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Atlanta, GA - General Services Administration [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - General Services Administration [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Federal Aviation Administration [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,196,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	1,416,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	15,143,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,612,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,143,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,755,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,232,000
Atlanta, GA - Federal Aviation Administration [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Federal Aviation Administration [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Gwinnett Distribution Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,119,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,960,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,875,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,119,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,835,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,954,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,322,000
Atlanta, GA - Gwinnett Distribution Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Gwinnett Distribution Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Henry County Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,010,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	13,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,023,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,023,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Atlanta, GA - Highwoods Center I at Tradeport [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	307,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	139,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,049,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	446,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,049,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,495,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	697,000
Atlanta, GA - Highwoods Center I at Tradeport [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Highwoods Center I at Tradeport [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Highwoods Center II at Tradeport [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	641,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	181,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,024,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	822,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,024,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,846,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	379,000
Atlanta, GA - Highwoods Center II at Tradeport [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Highwoods Center II at Tradeport [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Highwoods Center III at Tradeport [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	409,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	130,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,900,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	539,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,900,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,439,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	623,000
Atlanta, GA - Highwoods Center III at Tradeport [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Highwoods Center III at Tradeport [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Highwoods Riverpoint IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,037,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	858,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,820,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,895,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,820,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,715,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,275,000
Atlanta, GA - Highwoods Riverpoint IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Highwoods Riverpoint IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - NARA [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,484,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(1,484,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Atlanta, GA - NARA [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - NARA [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Newpoint Place I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	819,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	391,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,871,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,210,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,871,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,081,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	991,000
Atlanta, GA - Newpoint Place I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Newpoint Place I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Newpoint Place II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,499,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	434,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,085,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,933,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,085,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,018,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	917,000
Atlanta, GA - Newpoint Place II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Newpoint Place II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Newpoint Place III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	668,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	276,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,879,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	944,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,879,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,823,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	686,000
Atlanta, GA - Newpoint Place III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Newpoint Place III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Newpoint Place IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	989,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	455,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,048,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,444,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,048,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,492,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	973,000
Atlanta, GA - Newpoint Place IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Newpoint Place IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Newpoint Place V [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,150,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	920,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,949,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,070,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,949,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,019,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,134,000
Atlanta, GA - Newpoint Place V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Newpoint Place V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Norcross I & II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	323,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,000,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	602,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	323,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,602,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,925,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,099,000
Atlanta, GA - Norcross I & II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Norcross I & II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - 5405 Windward Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,342,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	32,111,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	411,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,342,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	32,522,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	35,864,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	12,155,000
Atlanta, GA - 5405 Windward Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - 5405 Windward Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - River Point Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	7,250,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	4,525,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,712,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	11,775,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,712,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,487,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	211,000
Atlanta, GA - Riverwood 100 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	67,604,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	5,785,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	64,913,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,629,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	5,785,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	69,542,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	75,327,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,175,000
Atlanta, GA - Riverwood 100 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Riverwood 100 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - South Park Residential Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	50,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	7,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	57,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	57,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Atlanta, GA - South Park Site Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,204,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	754,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,958,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,958,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Atlanta, GA - Southside Distribution Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	804,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,553,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,207,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	804,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,760,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,564,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,664,000
Atlanta, GA - Southside Distribution Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Southside Distribution Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Tradeport I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	557,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	261,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,218,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	818,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,218,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,036,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	750,000
Atlanta, GA - Tradeport I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Tradeport I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Tradeport II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	557,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	261,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,305,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	818,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,305,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,123,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	809,000
Atlanta, GA - Tradeport II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Tradeport II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Tradeport III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	673,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	370,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,684,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,043,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,684,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,727,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	907,000
Atlanta, GA - Tradeport III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Tradeport III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Tradeport IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	667,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	365,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,683,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,032,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,683,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,715,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,105,000
Atlanta, GA - Tradeport IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Tradeport IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Tradeport Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	5,243,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(387,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,856,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,856,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Atlanta, GA - Tradeport V [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	463,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	180,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,322,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	643,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,322,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,965,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	565,000
Atlanta, GA - Tradeport V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Tradeport V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Two Point Royal [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,793,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	14,964,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,486,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,793,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	17,450,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	19,243,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,737,000
Atlanta, GA - Two Point Royal [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Two Point Royal [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Atlanta, GA - Two Alliance Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	9,579,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	125,549,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,020,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	9,579,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	127,569,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	137,148,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,587,000
Atlanta, GA - Two Alliance Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Atlanta, GA - Two Alliance Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Greenville, SC - Brookfield Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,500,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,514,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,691,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,500,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,205,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,705,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,922,000
Greenville, SC - Brookfield Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Greenville, SC - Brookfield Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Greenville, SC - Jacobs-Building [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,050,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	17,280,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(23,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,880,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,027,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	21,160,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	24,187,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	9,155,000
Greenville, SC - Jacobs-Building [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Greenville, SC - Jacobs-Building [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Greenville, SC - Brookfield MetLife [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,039,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	352,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,033,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,391,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,033,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,424,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,226,000
Greenville, SC - Brookfield MetLife [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Greenville, SC - Brookfield MetLife [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Greenville, SC - Patewood I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	942,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,117,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	992,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	942,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,109,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,051,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,315,000
Greenville, SC - Patewood I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Greenville, SC - Patewood I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Greenville, SC - Patewood II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	942,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,176,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	651,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	942,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,827,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,769,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,259,000
Greenville, SC - Patewood II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Greenville, SC - Patewood II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Greenville, SC - Patewood III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	842,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,776,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	489,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	842,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,265,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,107,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,147,000
Greenville, SC - Patewood III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Greenville, SC - Patewood III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Greenville, SC - Patewood IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,219,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,918,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	618,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,219,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,536,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,755,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,095,000
Greenville, SC - Patewood IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Greenville, SC - Patewood IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Greenville, SC - Patewood V [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,690,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,589,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,359,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,690,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,948,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,638,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,448,000
Greenville, SC - Patewood V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Greenville, SC - Patewood V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Greenville, SC - Patewood VI [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,360,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	321,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,661,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,681,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,661,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,342,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,693,000
Greenville, SC - Patewood VI [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Greenville, SC - Patewood VI [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Kansas City, MO - Country Club Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	14,286,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	146,879,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(198,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	126,551,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	14,088,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	273,430,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	287,518,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	98,798,000
Kansas City, MO - Country Club Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Kansas City, MO - Country Club Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Kansas City, MO - Land - Hotel Land - Valencia [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	978,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	111,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,089,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,089,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Kansas City, MO - Neptune Apartments [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,098,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,282,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(1,098,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(6,282,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Kansas City, MO - Neptune Apartments [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Kansas City, MO - Neptune Apartments [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Kansas City, MO - One Ward Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	681,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,937,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(681,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(3,937,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Kansas City, MO - One Ward Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Kansas City, MO - One Ward Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Kansas City, MO - Park Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	67,604,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,384,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,410,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,982,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,384,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,392,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,776,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,706,000
Kansas City, MO - Park Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Kansas City, MO - Park Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Kansas City, MO - Two Emmanuel Cleaver Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	984,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,402,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,074,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	984,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,476,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,460,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,956,000
Kansas City, MO - Two Emmanuel Cleaver Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Kansas City, MO - Two Emmanuel Cleaver Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Kansas City, MO - Valencia Place Office [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	67,604,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,576,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	970,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	36,673,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,546,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	36,673,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	39,219,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	13,283,000
Kansas City, MO - Valencia Place Office [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Kansas City, MO - Valencia Place Office [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - 3400 Players Club Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,005,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	207,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,260,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,212,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,260,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,472,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,020,000
Memphis, TN - 3400 Players Club Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - 3400 Players Club Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Triad Centre I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,340,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,385,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(849,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,289,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,491,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,674,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,165,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,848,000
Memphis, TN - Triad Centre I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Triad Centre I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Triad Centre II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,980,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,677,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(404,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,269,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,576,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,946,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,522,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,713,000
Memphis, TN - Triad Centre II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Triad Centre II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Atrium I & II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,570,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,253,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,449,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,570,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,702,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,272,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,659,000
Memphis, TN - Atrium I & II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Atrium I & II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Centrum [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,013,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,580,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,587,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,013,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,167,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,180,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,193,000
Memphis, TN - Centrum [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Centrum [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Comcast Corporation [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	946,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,621,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	946,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,621,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,567,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,805,000
Memphis, TN - Comcast Corporation [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Comcast Corporation [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - International Place II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	4,884,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	27,782,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,060,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,884,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	31,842,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	36,726,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	13,333,000
Memphis, TN - International Place II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - International Place II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Penn Marc Centre [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	7,028,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,607,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	10,240,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,423,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,607,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,663,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,270,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,751,000
Memphis, TN - Penn Marc Centre [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Penn Marc Centre [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Shadow Creek I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	924,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	466,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,559,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,390,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,559,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,949,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,025,000
Memphis, TN - Shadow Creek I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Shadow Creek I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Shadow Creek II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	734,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	467,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,164,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,201,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,164,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,365,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,968,000
Memphis, TN - Shadow Creek II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Shadow Creek II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Southwind Office Center A [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,004,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,694,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	282,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,448,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,286,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,142,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,428,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,975,000
Memphis, TN - Southwind Office Center A [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Southwind Office Center A [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Southwind Office Center B [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,366,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,754,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	981,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,366,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,735,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,101,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,578,000
Memphis, TN - Southwind Office Center B [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Southwind Office Center B [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Southwind Office Center C [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,070,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	221,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,079,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,291,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,079,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,370,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,833,000
Memphis, TN - Southwind Office Center C [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Southwind Office Center C [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Southwind Office Center D [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	744,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	193,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,310,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	937,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,310,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,247,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,666,000
Memphis, TN - Southwind Office Center D [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Southwind Office Center D [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - The Colonnade [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,300,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,481,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	267,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	505,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,567,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,986,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,553,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,612,000
Memphis, TN - The Colonnade [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - The Colonnade [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - ThyssenKrupp Elevator Mfg Headquarters [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,040,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	25,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,342,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,065,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,342,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,407,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,198,000
Memphis, TN - ThyssenKrupp Elevator Mfg Headquarters [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - ThyssenKrupp Elevator Mfg Headquarters [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - General Services Administration [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	871,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(871,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Memphis, TN - General Services Administration [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - General Services Administration [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Crescent Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	39,805,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	7,875,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	32,756,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,168,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	7,875,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	36,924,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	44,799,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,975,000
Memphis, TN - Crescent Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Crescent Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Memphis, TN - Southwind Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,662,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(1,477,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,185,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,185,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Memphis, TN - Triad Center III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,253,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	35,122,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,253,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	35,122,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	36,375,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,943,000
Memphis, TN - Triad Center III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Memphis, TN - Triad Center III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - 3322 West End [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,025,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	27,490,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,556,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,025,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	31,046,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	34,071,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	10,301,000
Nashville, TN - 3322 West End [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - 3322 West End [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - 3401 West End [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	5,862,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	22,917,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,630,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	5,862,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	28,547,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	34,409,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	12,724,000
Nashville, TN - 3401 West End [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - 3401 West End [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - 5310 Maryland Way [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,863,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,201,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	230,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,863,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,431,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,294,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,139,000
Nashville, TN - 5310 Maryland Way [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - 5310 Maryland Way [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - BNA Corporate Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	18,506,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(18,506,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Nashville, TN - BNA Corporate Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - BNA Corporate Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Century City Plaza I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	903,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,919,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(903,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(6,919,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Nashville, TN - Century City Plaza I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Century City Plaza I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Cool Springs 1 & 2 Deck [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	110,671,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,957,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,957,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,957,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	511,000
Nashville, TN - Cool Springs 1 & 2 Deck [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Cool Springs 1 & 2 Deck [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Cool Springs 3 &4 Deck [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,418,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,418,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,418,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	636,000
Nashville, TN - Cool Springs 3 &4 Deck [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Cool Springs 3 &4 Deck [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Cool Springs I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,583,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	15,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,288,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,598,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,288,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,886,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,135,000
Nashville, TN - Cool Springs I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Cool Springs I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Cool Springs II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,824,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	346,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	18,154,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,170,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	18,154,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	20,324,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,429,000
Nashville, TN - Cool Springs II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Cool Springs II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Cool Springs III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,631,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	804,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	16,949,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,435,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	16,949,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	19,384,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,089,000
Nashville, TN - Cool Springs III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Cool Springs III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Cool Springs IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,715,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	21,371,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,715,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	21,371,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	23,086,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,546,000
Nashville, TN - Cool Springs IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Cool Springs IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Cool Springs V Healthways [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,688,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	295,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	52,433,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,983,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	52,433,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	56,416,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	8,586,000
Nashville, TN - Cool Springs V Healthways [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Cool Springs V Healthways [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Harpeth on the Green II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,419,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,677,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,292,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,419,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,969,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,388,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,941,000
Nashville, TN - Harpeth on the Green II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Harpeth on the Green II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Harpeth on the Green III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,660,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,649,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,836,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,660,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,485,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,145,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,514,000
Nashville, TN - Harpeth on the Green III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Harpeth on the Green III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Harpeth on the Green IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,713,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,842,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,464,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,713,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,306,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,019,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,314,000
Nashville, TN - Harpeth on the Green IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Harpeth on the Green IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Harpeth on The Green V [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	662,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	197,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,304,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	859,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,304,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,163,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,647,000
Nashville, TN - Harpeth on The Green V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Harpeth on The Green V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Hickory Trace [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,164,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	164,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,657,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,328,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,657,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,985,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,350,000
Nashville, TN - Hickory Trace [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Hickory Trace [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Highwoods Plaza I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,552,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	307,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,989,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,859,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,989,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,848,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,337,000
Nashville, TN - Highwoods Plaza I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Highwoods Plaza I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Highwoods Plaza II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,448,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	307,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,799,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,755,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,799,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,554,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,160,000
Nashville, TN - Highwoods Plaza II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Highwoods Plaza II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Lakeview Ridge II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	605,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(605,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Nashville, TN - Lakeview Ridge II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Lakeview Ridge II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Lakeview Ridge III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,073,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(1,073,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Nashville, TN - Lakeview Ridge III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Lakeview Ridge III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Seven Springs - Land I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,122,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(1,314,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,808,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,808,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Nashville, TN - Seven Springs - Land II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,715,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(1,025,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,690,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,690,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Nashville, TN - Seven Springs I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,076,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	592,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,658,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,668,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,658,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,326,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,392,000
Nashville, TN - Seven Springs I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Seven Springs I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - SouthPointe [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,655,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	310,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,761,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,965,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,761,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,726,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,484,000
Nashville, TN - SouthPointe [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - SouthPointe [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - The Ramparts at Brentwood [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,394,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	12,806,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,109,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,394,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,915,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,309,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,907,000
Nashville, TN - The Ramparts at Brentwood [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - The Ramparts at Brentwood [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Westwood South [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,106,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	382,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,006,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,488,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,006,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,494,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,972,000
Nashville, TN - Westwood South [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - Westwood South [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - 100 Winners Circle [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,497,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,258,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,368,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,497,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,626,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,123,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,158,000
Nashville, TN - 100 Winners Circle [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Nashville, TN - 100 Winners Circle [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Nashville, TN - Nashville Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	15,000,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	15,000,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,000,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Orlando, FL - Berkshire at Metro Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,265,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	672,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,781,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,937,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,781,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,718,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,984,000
Orlando, FL - Berkshire at Metro Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Orlando, FL - Berkshire at Metro Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Orlando, FL - Capital Plaza III Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,994,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	18,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,012,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,012,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Orlando, FL - Eola Park Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,027,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,027,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,027,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Orlando, FL - Cambridge at MetroCenter [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	501,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	14,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,320,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	515,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,320,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,835,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	773,000
Orlando, FL - Cambridge at MetroCenter [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Orlando, FL - Cambridge at MetroCenter [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Orlando, FL - Oxford Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,100,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	51,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,151,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,151,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Orlando, FL - MetroWest Commerce Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,354,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,687,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(164,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,816,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,190,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,503,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,693,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,315,000
Orlando, FL - MetroWest Commerce Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Orlando, FL - MetroWest Commerce Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Orlando, FL - Stratford Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,034,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(148,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,886,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,886,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Orlando, FL - Windsor at Metro Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	2,060,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,296,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,060,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,296,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,356,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,000,000
Orlando, FL - Windsor at Metro Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Orlando, FL - Windsor at Metro Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
South Florida - The 1800 Eller Drive Building [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,851,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,619,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,470,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,470,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,550,000
South Florida - The 1800 Eller Drive Building [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
South Florida - The 1800 Eller Drive Building [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 101 South Stratford Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,205,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,916,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,164,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,205,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,080,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,285,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,013,000
Piedmont Triad, NC - 101 South Stratford Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 101 South Stratford Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 6348 Burnt Poplar [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	724,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,900,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	254,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	724,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,154,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,878,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,355,000
Piedmont Triad, NC - 6348 Burnt Poplar [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 6348 Burnt Poplar [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 6350 Burnt Poplar [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	341,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,374,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	237,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	341,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,611,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,952,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	701,000
Piedmont Triad, NC - 6350 Burnt Poplar [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 6350 Burnt Poplar [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7341 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	113,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	841,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	381,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	113,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,222,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,335,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	521,000
Piedmont Triad, NC - 7341 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7341 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7343 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	72,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	555,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	273,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	72,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	828,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	900,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	331,000
Piedmont Triad, NC - 7343 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7343 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7345 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	66,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	492,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	210,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	66,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	702,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	768,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	295,000
Piedmont Triad, NC - 7345 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7345 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7347 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	97,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	719,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	269,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	97,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	988,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,085,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	407,000
Piedmont Triad, NC - 7347 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7347 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7349 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	53,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	393,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	161,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	53,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	554,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	607,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	202,000
Piedmont Triad, NC - 7349 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7349 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7351 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	106,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	788,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	153,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	106,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	941,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,047,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	399,000
Piedmont Triad, NC - 7351 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7351 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7353 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	123,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	912,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	120,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	123,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,032,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,155,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	420,000
Piedmont Triad, NC - 7353 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7353 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7355 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	72,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	538,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	156,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	72,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	694,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	766,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	276,000
Piedmont Triad, NC - 7355 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7355 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 420 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	379,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,516,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	419,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	379,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,935,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,314,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	803,000
Piedmont Triad, NC - 420 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 420 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 418 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	462,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,849,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	414,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	462,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,263,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,725,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	949,000
Piedmont Triad, NC - 418 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 418 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 416 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	322,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,293,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	485,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	322,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,778,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,100,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	766,000
Piedmont Triad, NC - 416 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 416 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7031 Albert Pick Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	510,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,921,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,668,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	510,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,589,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,099,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,008,000
Piedmont Triad, NC - 7031 Albert Pick Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7031 Albert Pick Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7029 Albert Pick Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	739,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,237,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	875,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	739,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,112,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,851,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,933,000
Piedmont Triad, NC - 7029 Albert Pick Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7029 Albert Pick Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7025 Albert Pick Road [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,393,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,576,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,884,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,393,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,460,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,853,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,424,000
Piedmont Triad, NC - 7025 Albert Pick Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7025 Albert Pick Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7027 Albert Pick Road [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	850,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	699,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,911,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,549,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,911,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,460,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,486,000
Piedmont Triad, NC - 7027 Albert Pick Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7027 Albert Pick Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7009 Albert Pick Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	224,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,068,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	320,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	224,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,388,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,612,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	748,000
Piedmont Triad, NC - 7009 Albert Pick Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7009 Albert Pick Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 426 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	465,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	380,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,024,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	845,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,024,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,869,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	429,000
Piedmont Triad, NC - 426 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 426 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC -422 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	145,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,081,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	331,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	145,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,412,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,557,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	570,000
Piedmont Triad, NC -422 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC -422 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 406 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	265,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	270,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	951,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	535,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	951,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,486,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	378,000
Piedmont Triad, NC - 406 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 406 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7021 Albert Pick Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	237,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,103,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	199,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	237,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,302,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,539,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	567,000
Piedmont Triad, NC - 7021 Albert Pick Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7021 Albert Pick Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7019 Albert Pick Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	192,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	946,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	199,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	192,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,145,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,337,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	488,000
Piedmont Triad, NC - 7019 Albert Pick Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7019 Albert Pick Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7015 Albert Pick Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	305,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,219,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	372,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	305,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,591,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,896,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	682,000
Piedmont Triad, NC - 7015 Albert Pick Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7015 Albert Pick Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7017 Albert Pick Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	225,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	928,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	116,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	225,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,044,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,269,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	454,000
Piedmont Triad, NC - 7017 Albert Pick Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7017 Albert Pick Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7011 Albert Pick Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	171,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	777,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	230,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	171,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,007,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,178,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	432,000
Piedmont Triad, NC - 7011 Albert Pick Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7011 Albert Pick Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 424 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	271,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	239,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	989,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	510,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	989,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,499,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	480,000
Piedmont Triad, NC - 424 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 424 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 410 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	356,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,613,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	202,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	356,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,815,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,171,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	840,000
Piedmont Triad, NC - 410 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 410 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 412 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	374,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,523,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	377,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	374,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,900,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,274,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	787,000
Piedmont Triad, NC - 412 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 412 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 408 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	341,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,486,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	629,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	341,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,115,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,456,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,006,000
Piedmont Triad, NC - 408 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 408 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 414 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	659,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,676,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	646,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	659,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,322,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,981,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,447,000
Piedmont Triad, NC - 414 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 414 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 237 Burgess Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	860,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,919,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	550,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	860,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,469,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,329,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,548,000
Piedmont Triad, NC - 237 Burgess Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 237 Burgess Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 235 Burgess Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,302,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,392,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	706,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,302,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,098,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,400,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,504,000
Piedmont Triad, NC - 235 Burgess Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 235 Burgess Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 241 Burgess Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	450,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,517,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	897,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	450,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,414,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,864,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	964,000
Piedmont Triad, NC - 241 Burgess Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 241 Burgess Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 243 Burgess Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	452,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,514,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	153,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	452,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,667,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,119,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	774,000
Piedmont Triad, NC - 243 Burgess Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 243 Burgess Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 496 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	546,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,918,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	546,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,918,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,464,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,157,000
Piedmont Triad, NC - 496 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 496 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 494 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	749,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,509,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	749,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,509,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,258,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	854,000
Piedmont Triad, NC - 494 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 494 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 486 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	603,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,273,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	603,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,273,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,876,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	729,000
Piedmont Triad, NC - 486 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 486 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 488 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	499,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,075,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	499,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,075,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,574,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	661,000
Piedmont Triad, NC - 488 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 488 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 490 Gallimore Dairy Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,733,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,742,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,733,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,742,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,475,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,691,000
Piedmont Triad, NC - 490 Gallimore Dairy Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 490 Gallimore Dairy Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7825 National Service Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	944,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,831,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,017,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	944,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,848,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,792,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,230,000
Piedmont Triad, NC - 7825 National Service Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7825 National Service Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7823 National Service Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	887,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,550,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	506,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	887,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,056,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,943,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,818,000
Piedmont Triad, NC - 7823 National Service Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7823 National Service Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7819 National Service Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	227,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	907,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	430,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	227,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,337,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,564,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	644,000
Piedmont Triad, NC - 7819 National Service Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7819 National Service Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7817 National Service Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	243,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	971,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	647,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	243,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,618,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,861,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	622,000
Piedmont Triad, NC - 7817 National Service Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7817 National Service Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7815 National Service Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	327,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,309,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	842,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	327,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,151,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,478,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	968,000
Piedmont Triad, NC - 7815 National Service Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7815 National Service Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - Brigham Road - Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	7,059,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(3,720,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,339,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,339,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Piedmont Triad, NC - 3330 Healy Drive [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	625,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,183,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(235,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	555,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	390,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,738,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,128,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,344,000
Piedmont Triad, NC - 3330 Healy Drive [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 3330 Healy Drive [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 3334 Healy Drive [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	625,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,435,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(203,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(983,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	422,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,452,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,874,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,754,000
Piedmont Triad, NC - 3334 Healy Drive [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 3334 Healy Drive [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 1381 Old Mill Circle [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	680,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,572,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(217,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(963,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	463,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,609,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,072,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,317,000
Piedmont Triad, NC - 1381 Old Mill Circle [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 1381 Old Mill Circle [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 1399 Ashleybrook Lane [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	376,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,655,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(123,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(337,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	253,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,318,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,571,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	667,000
Piedmont Triad, NC - 1399 Ashleybrook Lane [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 1399 Ashleybrook Lane [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7800 Thorndike Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,041,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,892,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,429,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,041,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,321,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,362,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,812,000
Piedmont Triad, NC - 7800 Thorndike Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7800 Thorndike Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 651 Brigham Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	453,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	360,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,900,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	813,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,900,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,713,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	896,000
Piedmont Triad, NC - 651 Brigham Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 651 Brigham Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 657 Brigham Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,733,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	881,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,097,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,614,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,097,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,711,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,924,000
Piedmont Triad, NC - 657 Brigham Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 657 Brigham Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 653 Brigham Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	814,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,587,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	814,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,587,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,401,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	454,000
Piedmont Triad, NC - 653 Brigham Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 653 Brigham Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 2000 Frontis Plaza Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	329,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,867,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	767,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	329,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,634,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,963,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,227,000
Piedmont Triad, NC - 2000 Frontis Plaza Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 2000 Frontis Plaza Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 1501 Highwoods Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,476,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,848,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,476,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,848,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,324,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,126,000
Piedmont Triad, NC - 1501 Highwoods Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 1501 Highwoods Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - Jefferson Pilot Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	11,759,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(4,311,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	7,448,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,448,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Piedmont Triad, NC - 4200 Tudor Lane [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	515,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	383,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,352,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	898,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,352,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,250,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	988,000
Piedmont Triad, NC - 4200 Tudor Lane [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 4200 Tudor Lane [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 4224 Tudor Lane [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	435,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	288,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,838,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	723,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,838,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,561,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	724,000
Piedmont Triad, NC - 4224 Tudor Lane [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 4224 Tudor Lane [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 7023 Albert Pick [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	834,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,459,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	500,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	834,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,959,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,793,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,706,000
Piedmont Triad, NC - 7023 Albert Pick [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 7023 Albert Pick [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 380 Knollwood Street - Retail [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	227,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	228,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	228,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	117,000
Piedmont Triad, NC - 380 Knollwood Street - Retail [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 380 Knollwood Street - Retail [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 370 Knollwood Street [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,826,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,495,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,627,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,826,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,122,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,948,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,716,000
Piedmont Triad, NC - 370 Knollwood Street [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 370 Knollwood Street [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 380 Knollwood Street [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,989,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	12,028,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,902,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,989,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,930,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,919,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,580,000
Piedmont Triad, NC - 380 Knollwood Street [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 380 Knollwood Street [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 799 Hanes Mall Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,450,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,375,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,005,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,450,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,380,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,830,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,924,000
Piedmont Triad, NC - 799 Hanes Mall Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 799 Hanes Mall Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - 3901 Westpoint Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	347,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,389,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	97,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	347,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,486,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,833,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	653,000
Piedmont Triad, NC - 3901 Westpoint Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - 3901 Westpoint Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - Church Street Medical I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	7,764,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,734,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,129,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,734,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,129,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,863,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	91,000
Piedmont Triad, NC - Church Street Medical I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - Church Street Medical I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - Church Street Medical II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,376,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,451,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,376,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,454,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,830,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	125,000
Piedmont Triad, NC - Church Street Medical II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - Church Street Medical II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Piedmont Triad, NC - Church Street Medical III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	925,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,551,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	76,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	925,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,627,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,552,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	91,000
Piedmont Triad, NC - Church Street Medical III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Piedmont Triad, NC - Church Street Medical III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Pittsburgh, PA - One PPG Place [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,924,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	9,819,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	107,643,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,751,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	9,819,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	119,394,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	129,213,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,274,000
Pittsburgh, PA - One PPG Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Pittsburgh, PA - One PPG Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Pittsburgh, PA - Two PPG Place - Office [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,924,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,302,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	10,863,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	376,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,302,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,239,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,541,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	520,000
Pittsburgh, PA - Two PPG Place - Office [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Pittsburgh, PA - Two PPG Place - Office [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Pittsburgh, PA - Two PPG Place - Retail [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,924,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	115,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	150,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	265,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	265,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	28,000
Pittsburgh, PA - Two PPG Place - Retail [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Pittsburgh, PA - Two PPG Place - Retail [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Pittsburgh, PA - Three PPG Place [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,924,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	501,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,923,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	556,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	501,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,479,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,980,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	152,000
Pittsburgh, PA - Three PPG Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Pittsburgh, PA - Three PPG Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Pittsburgh, PA - Four PPG Place [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,924,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	620,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,239,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	689,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	620,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,928,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,548,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	154,000
Pittsburgh, PA - Four PPG Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Pittsburgh, PA - Four PPG Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Pittsburgh, PA - Five PPG Place [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,924,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	803,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,924,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,149,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	803,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,073,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,876,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	310,000
Pittsburgh, PA - Five PPG Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Pittsburgh, PA - Five PPG Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Pittsburgh, PA - Six PPG Place [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,924,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,353,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	25,602,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,744,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,353,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	28,346,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	31,699,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,698,000
Pittsburgh, PA - Six PPG Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Pittsburgh, PA - Six PPG Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Pittsburgh, PA - EQT Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	83,812,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	83,812,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	83,812,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	282,000
Pittsburgh, PA - EQT Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Pittsburgh, PA - EQT Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 3600 Glenwood Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	10,994,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,581,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,575,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,575,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,441,000
Raleigh, NC - 3600 Glenwood Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 3600 Glenwood Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 3737 Glenwood Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	318,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	15,347,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	318,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,347,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,665,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,822,000
Raleigh, NC - 3737 Glenwood Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 3737 Glenwood Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 4101 Research Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,348,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,346,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	220,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(2,109,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,568,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,237,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,805,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,026,000
Raleigh, NC - 4101 Research Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4101 Research Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 4201 Research Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,204,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,858,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,284,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,204,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,574,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,778,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,029,000
Raleigh, NC - 4201 Research Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4201 Research Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 4301 Research Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	900,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,237,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	534,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	900,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,771,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,671,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,853,000
Raleigh, NC - 4301 Research Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4301 Research Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 4401 Research Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,249,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,387,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,007,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,249,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,394,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,643,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,988,000
Raleigh, NC - 4401 Research Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4401 Research Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 4501 Research Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	785,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,856,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,780,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	785,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,636,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,421,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,854,000
Raleigh, NC - 4501 Research Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4501 Research Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 4800 North Park [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,678,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	17,630,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,493,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,678,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	25,123,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	27,801,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	11,333,000
Raleigh, NC - 4800 North Park [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4800 North Park [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 4900 North Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	87,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	770,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,983,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,275,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	770,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,258,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,028,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,373,000
Raleigh, NC - 4900 North Park [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4900 North Park [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 5000 North Park [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,010,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,612,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(49,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,423,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	961,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,035,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,996,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,546,000
Raleigh, NC - 5000 North Park [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 5000 North Park [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 801 Raleigh Corporate Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	110,671,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	828,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	272,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,565,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,100,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,565,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,665,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,700,000
Raleigh, NC - 801 Raleigh Corporate Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 801 Raleigh Corporate Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Blue Ridge I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	722,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,606,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,082,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	722,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,688,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,410,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,705,000
Raleigh, NC - Blue Ridge I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Blue Ridge I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Blue Ridge II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	462,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,410,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	494,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	462,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,904,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,366,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,091,000
Raleigh, NC - Blue Ridge II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Blue Ridge II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Cape Fear [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	131,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,630,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	770,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	131,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,400,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,531,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,224,000
Raleigh, NC - Cape Fear [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Cape Fear [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Catawba [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	125,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,635,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,390,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	125,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,025,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,150,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,975,000
Raleigh, NC - Catawba [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Catawba [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - CentreGreen One - Weston [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,529,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(378,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,400,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,151,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,400,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,551,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,677,000
Raleigh, NC - CentreGreen One - Weston [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - CentreGreen One - Weston [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - CentreGreen Two - Weston [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,653,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(389,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,885,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,264,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,885,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,149,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,655,000
Raleigh, NC - CentreGreen Two - Weston [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - CentreGreen Two - Weston [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - CentreGreen Three Land - Weston [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,876,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(384,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,492,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,492,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Raleigh, NC - CentreGreen Four [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,779,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(397,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,127,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,382,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,127,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,509,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,984,000
Raleigh, NC - CentreGreen Four [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - CentreGreen Four [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - CentreGreen Five [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,280,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	69,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,781,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,349,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,781,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,130,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,428,000
Raleigh, NC - CentreGreen Five [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - CentreGreen Five [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Cottonwood [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	609,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,244,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	434,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	609,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,678,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,287,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,728,000
Raleigh, NC - Cottonwood [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Cottonwood [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Dogwood [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	766,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,769,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	524,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	766,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,293,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,059,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,656,000
Raleigh, NC - Dogwood [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Dogwood [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - EPA [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,597,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,670,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,597,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,670,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,267,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	949,000
Raleigh, NC - EPA [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - EPA [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - GlenLake Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	13,003,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(6,096,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	114,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	6,907,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	114,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,021,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	33,000
Raleigh, NC - GlenLake One [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	924,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	1,324,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	21,914,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,248,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	21,914,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	24,162,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,652,000
Raleigh, NC - GlenLake One [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - GlenLake One [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - GlenLake Four [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	110,671,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,659,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	493,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	21,920,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,152,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	21,920,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	24,072,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,717,000
Raleigh, NC - GlenLake Four [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - GlenLake Four [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - GlenLake Six [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	941,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	737,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	22,186,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,678,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	22,186,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	23,864,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,557,000
Raleigh, NC - GlenLake Six [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - GlenLake Six [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 701 Raleigh Corporate Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	110,671,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,304,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	540,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	13,812,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,844,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	13,812,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,656,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,570,000
Raleigh, NC - 701 Raleigh Corporate Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 701 Raleigh Corporate Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Highwoods Centre [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	531,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(267,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,553,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	264,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,553,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,817,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,918,000
Raleigh, NC - Highwoods Centre [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Highwoods Centre [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Highwoods Office Center North Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	357,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	49,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	357,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	49,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	406,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	31,000
Raleigh, NC - Highwoods Tower One [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	203,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	16,744,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,377,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	203,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	20,121,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	20,324,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	10,313,000
Raleigh, NC - Highwoods Tower One [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Highwoods Tower One [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Highwoods Tower Two [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	365,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	503,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	21,362,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	868,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	21,362,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	22,230,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,114,000
Raleigh, NC - Highwoods Tower Two [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Highwoods Tower Two [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Inveresk Land Parcel 2 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	657,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	197,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	854,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	854,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Raleigh, NC - Inveresk Land Parcel 3 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	548,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	306,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	854,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	854,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Raleigh, NC - Lake Boone Medical Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,450,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,311,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	257,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,450,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,568,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,018,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	527,000
Raleigh, NC - Lake Boone Medical Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Lake Boone Medical Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 4620 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	149,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	107,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,153,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	256,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,153,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,409,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	982,000
Raleigh, NC - 4620 Creekstone Drive [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4620 Creekstone Drive [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 4825 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	398,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	293,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,282,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	691,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,282,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,973,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,131,000
Raleigh, NC - 4825 Creekstone Drive [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4825 Creekstone Drive [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Pamlico [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	289,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	14,825,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	289,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,825,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,114,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	9,943,000
Raleigh, NC - Pamlico [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Pamlico [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - ParkWest One [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	242,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,315,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	242,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,315,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,557,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	946,000
Raleigh, NC - ParkWest One [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - ParkWest One [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - ParkWest Two [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	356,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,099,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	356,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,099,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,455,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,574,000
Raleigh, NC - ParkWest Two [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - ParkWest Two [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - ParkWest Three - Land - Weston [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	306,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	306,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	306,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Raleigh, NC - Progress Center Renovation [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	362,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	362,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	362,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	215,000
Raleigh, NC - Progress Center Renovation [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Progress Center Renovation [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Raleigh Corp Center Lot D [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,211,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	8,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,219,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,219,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Raleigh, NC - PNC Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	45,662,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,206,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	71,553,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,206,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	71,553,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	72,759,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	9,831,000
Raleigh, NC - PNC Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - PNC Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Rexwoods Center I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	878,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,730,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,224,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	878,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,954,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,832,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,798,000
Raleigh, NC - Rexwoods Center I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Rexwoods Center I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Rexwoods Center II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	362,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,818,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,001,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	362,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,819,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,181,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	930,000
Raleigh, NC - Rexwoods Center II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Rexwoods Center II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Rexwoods Center III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	919,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,816,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	751,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	919,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,567,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,486,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,889,000
Raleigh, NC - Rexwoods Center III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Rexwoods Center III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Rexwoods Center IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	586,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,888,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	586,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,888,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,474,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,574,000
Raleigh, NC - Rexwoods Center IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Rexwoods Center IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Rexwoods Center V [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,301,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	184,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,241,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,485,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,241,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,726,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,942,000
Raleigh, NC - Rexwoods Center V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Rexwoods Center V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Riverbirch [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	469,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,038,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	23,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,409,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	492,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,447,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,939,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	599,000
Raleigh, NC - Riverbirch [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Riverbirch [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Situs I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	692,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,646,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	178,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,189,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	870,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,457,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,327,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,334,000
Raleigh, NC - Situs I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Situs I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Situs II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	718,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,254,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	181,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,081,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	899,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,173,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,072,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,857,000
Raleigh, NC - Situs II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Situs II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Situs III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	440,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,078,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	119,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,008,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	559,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,070,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,629,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,025,000
Raleigh, NC - Situs III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Situs III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Six Forks Center I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	666,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,665,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,268,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	666,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,933,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,599,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,774,000
Raleigh, NC - Six Forks Center I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Six Forks Center I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Six Forks Center II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,086,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,533,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,582,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,086,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,115,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,201,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,803,000
Raleigh, NC - Six Forks Center II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Six Forks Center II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Six Forks Center III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	862,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,411,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,897,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	862,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,308,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,170,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,956,000
Raleigh, NC - Six Forks Center III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Six Forks Center III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Smoketree Tower [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,353,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,743,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,245,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,353,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,988,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	18,341,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,083,000
Raleigh, NC - Smoketree Tower [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - Smoketree Tower [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 4601 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	255,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	217,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,184,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	472,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,184,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,656,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,945,000
Raleigh, NC - 4601 Creekstone Drive [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4601 Creekstone Drive [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Weston Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	22,771,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(8,938,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	13,833,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,833,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Raleigh, NC - 4625 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	458,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	268,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,142,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	726,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,142,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,868,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,200,000
Raleigh, NC - 4625 Creekstone Drive [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 4625 Creekstone Drive [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - 11000 Weston Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,651,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	18,850,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	233,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,651,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	19,083,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	21,734,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	572,000
Raleigh, NC - 11000 Weston Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Raleigh, NC - 11000 Weston Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Raleigh, NC - Other Property [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	24,976,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,495,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(23,151,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,574,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,825,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,069,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,894,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,467,000
Richmond, VA - 4900 Cox Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,324,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,311,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,006,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,324,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,317,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,641,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,605,000
Richmond, VA - 4900 Cox Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - 4900 Cox Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Colonnade Building [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,364,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,105,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	722,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,364,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,827,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,191,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,967,000
Richmond, VA - Colonnade Building [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Colonnade Building [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Dominion Place - Pitts Parcel - Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,101,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(189,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	912,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	912,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Richmond, VA - Markel 4521 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	10,142,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,581,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	13,299,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,746,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,581,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,553,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,134,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,683,000
Richmond, VA - Markel 4521 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Markel 4521 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Grove Park I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	713,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	319,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,230,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,032,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,230,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,262,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,974,000
Richmond, VA - Grove Park I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Grove Park I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Hamilton Beach/Proctor Silex [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,086,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,345,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,025,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,086,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,370,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,456,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,028,000
Richmond, VA - Hamilton Beach/Proctor Silex [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Hamilton Beach/Proctor Silex [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Highwoods Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	521,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	446,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,343,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	967,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,343,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,310,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,133,000
Richmond, VA - Highwoods Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Highwoods Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Highwoods One [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,688,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,014,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,688,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,014,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,702,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,249,000
Richmond, VA - Highwoods One [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Highwoods One [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Highwoods Two [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	786,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	213,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,070,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	999,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,070,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,069,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,370,000
Richmond, VA - Highwoods Two [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Highwoods Two [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Highwoods Five [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	783,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,339,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	783,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,339,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,122,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,961,000
Richmond, VA - Highwoods Five [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Highwoods Five [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Highwoods Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	909,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	176,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,719,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,085,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,719,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,804,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,785,000
Richmond, VA - Highwoods Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Highwoods Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Markel 4551 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	4,809,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,300,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,958,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(144,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(414,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,156,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,544,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,700,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,475,000
Richmond, VA - Markel 4551 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Markel 4551 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Innslake Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	845,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	195,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,396,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,040,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,396,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,436,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,521,000
Richmond, VA - Innslake Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Innslake Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Highwoods Centre [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,205,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,825,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,098,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,205,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,923,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,128,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,374,000
Richmond, VA - Highwoods Centre [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Highwoods Centre [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Markel 4501 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	7,992,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,300,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	13,259,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	72,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(4,410,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,372,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,849,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,221,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,013,000
Richmond, VA - Markel 4501 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Markel 4501 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Markel 4600 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	10,142,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,700,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	17,081,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(386,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(5,389,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,314,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,692,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,006,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,617,000
Richmond, VA - Markel 4600 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Markel 4600 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - North Park [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,163,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,659,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(14,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,846,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,149,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,505,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,654,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,849,000
Richmond, VA - North Park [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - North Park [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - North Shore Commons I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	951,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,361,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	951,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,361,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,312,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,189,000
Richmond, VA - North Shore Commons I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - North Shore Commons I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - North Shore Commons II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,067,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(103,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,075,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,964,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,075,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,039,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,215,000
Richmond, VA - North Shore Commons II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - North Shore Commons II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - North Shore Commons C - Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,497,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,497,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,497,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Richmond, VA - North Shore Commons D - Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,261,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,261,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,261,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Richmond, VA - Nuckols Corner Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,259,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,259,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,259,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Richmond, VA - One Shockoe Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	356,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	15,164,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	356,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,164,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,520,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,684,000
Richmond, VA - Pavilion Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	181,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	46,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	20,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(46,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	201,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	201,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Richmond, VA - Lake Brook Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,600,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,864,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,063,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,600,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,927,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,527,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,332,000
Richmond, VA - Sadler & Cox Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,535,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,535,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,535,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Richmond, VA - 4840 Cox Road [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,918,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	337,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	13,550,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,255,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	13,550,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,805,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,075,000
Richmond, VA - 4840 Cox Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - 4840 Cox Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Stony Point F Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,841,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,841,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,841,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Richmond, VA - Stony Point I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,384,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,630,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	59,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,480,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,443,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,110,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,553,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,268,000
Richmond, VA - Stony Point I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Stony Point I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Stony Point II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,240,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,826,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,240,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,826,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,066,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,896,000
Richmond, VA - Stony Point II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Stony Point II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Stony Point III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	995,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,270,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	995,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,270,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,265,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,738,000
Richmond, VA - Stony Point III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Stony Point III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Stony Point IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	955,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,459,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	955,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,459,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,414,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,868,000
Richmond, VA - Stony Point IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Stony Point IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Technology Park I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	541,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,166,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	363,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	541,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,529,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,070,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,054,000
Richmond, VA - Technology Park I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Technology Park I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Technology Park II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	264,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,058,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	109,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	264,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,167,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,431,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	507,000
Richmond, VA - Technology Park II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Technology Park II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Vantage Place A [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	203,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	811,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	168,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	203,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	979,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,182,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	449,000
Richmond, VA - Vantage Place A [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Vantage Place A [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Vantage Place B [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	233,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	931,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	254,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	233,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,185,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,418,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	513,000
Richmond, VA - Vantage Place B [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Vantage Place B [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Vantage Place C [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	235,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	940,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	282,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	235,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,222,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,457,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	542,000
Richmond, VA - Vantage Place C [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Vantage Place C [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Vantage Place D [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	218,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	873,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	283,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	218,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,156,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,374,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	515,000
Richmond, VA - Vantage Place D [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Vantage Place D [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Vantage Pointe [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	116,977,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,089,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,500,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,279,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,089,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,779,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,868,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,547,000
Richmond, VA - Vantage Pointe [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Vantage Pointe [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Virginia Mutual [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,301,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,036,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	709,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,301,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,745,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,046,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,137,000
Richmond, VA - Virginia Mutual [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Virginia Mutual [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - Waterfront Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	585,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,347,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,180,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	585,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,527,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,112,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,572,000
Richmond, VA - Waterfront Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - Waterfront Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - West Shore I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	332,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,431,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	195,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	332,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,626,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,958,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	668,000
Richmond, VA - West Shore I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - West Shore I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - West Shore II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	489,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,181,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	593,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	489,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,774,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,263,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,096,000
Richmond, VA - West Shore II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - West Shore II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Richmond, VA - West Shore III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	961,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	141,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,295,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,102,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,295,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,397,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,505,000
Richmond, VA - West Shore III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Richmond, VA - West Shore III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - 380 Park Place [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,502,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	240,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,946,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,742,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,946,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,688,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,059,000
Tampa, FL - 380 Park Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - 380 Park Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - 4200 Cypress [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,673,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	16,470,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	897,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,673,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	17,367,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	20,040,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,425,000
Tampa, FL - 4200 Cypress [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - 4200 Cypress [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Anchor Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,281,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,318,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,241,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,281,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,559,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,840,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,773,000
Tampa, FL - Anchor Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Anchor Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Avion Park Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	5,237,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,487,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	5,237,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,487,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,724,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	158,000
Tampa, FL - Bayshore Place [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,276,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,817,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,244,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,276,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	13,061,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,337,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,960,000
Tampa, FL - Bayshore Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Bayshore Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - General Services Administration [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	110,671,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	4,054,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	406,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	27,273,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,460,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	27,273,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	31,733,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,330,000
Tampa, FL - General Services Administration [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - General Services Administration [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Feathersound Corporate Center II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	802,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,463,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(802,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(7,463,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Tampa, FL - Feathersound Corporate Center II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Feathersound Corporate Center II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Harborview Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,537,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	29,944,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	969,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(5,138,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,506,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	24,806,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	29,312,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,143,000
Tampa, FL - Harborview Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Harborview Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Highwoods Preserve I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	110,671,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	991,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	22,216,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	991,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	22,216,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	23,207,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,350,000
Tampa, FL - Highwoods Preserve I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Highwoods Preserve I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Highwoods Preserve Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,485,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	485,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,970,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,970,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Tampa, FL - Highwoods Preserve V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	110,671,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	881,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	27,282,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	881,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	27,282,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	28,163,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	10,195,000
Tampa, FL - Highwoods Preserve V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Highwoods Preserve V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Highwoods Bay Center I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,565,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(64,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	37,754,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,501,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	37,754,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	41,255,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,307,000
Tampa, FL - Highwoods Bay Center I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Highwoods Bay Center I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - HIW Bay Center II Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,482,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,482,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,482,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Tampa, FL - HIW Preserve VII [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	790,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,498,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	790,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,498,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,288,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,781,000
Tampa, FL - HIW Preserve VII [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - HIW Preserve VII [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - HIW Preserve VII Garage [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,789,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,789,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,789,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,004,000
Tampa, FL - HIW Preserve VII Garage [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - HIW Preserve VII Garage [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Horizon [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,257,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,724,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,981,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,981,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,850,000
Tampa, FL - Horizon [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Horizon [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - LakePointe One [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,106,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	89,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	36,297,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,106,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	36,386,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	38,492,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	13,845,000
Tampa, FL - LakePointe One [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - LakePointe One [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - LakePointe Two [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,000,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	15,848,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	672,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,803,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,672,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	23,651,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	26,323,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,974,000
Tampa, FL - LakePointe Two [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - LakePointe Two [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Lakeside [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,369,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	965,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,334,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,334,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,172,000
Tampa, FL - Lakeside [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Lakeside [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Lakeside Parkside Garage [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,571,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,571,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,571,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	658,000
Tampa, FL - Lakeside Parkside Garage [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Lakeside Parkside Garage [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - One Harbour Place [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,016,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	25,252,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,730,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,016,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	31,982,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	33,998,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	10,983,000
Tampa, FL - One Harbour Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - One Harbour Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Parkside [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,407,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,502,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,909,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,909,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,864,000
Tampa, FL - Parkside [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Parkside [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Pavilion [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	16,394,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,209,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	19,603,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	19,603,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,501,000
Tampa, FL - Pavilion [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Pavilion [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Pavilion Parking Garage [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,689,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,689,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,689,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,851,000
Tampa, FL - Pavilion Parking Garage [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Pavilion Parking Garage [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Spectrum [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,454,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	14,502,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,261,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,454,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	19,763,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	21,217,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,447,000
Tampa, FL - Spectrum [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Spectrum [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Tower Place [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	110,671,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,218,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	19,898,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,764,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,218,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	22,662,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	25,880,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	9,467,000
Tampa, FL - Tower Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Tower Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Westshore Square [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,126,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,186,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,641,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,126,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,827,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,953,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,258,000
Tampa, FL - Westshore Square [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Westshore Square [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Independence Park Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	4,943,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,943,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,943,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Tampa, FL - Independence Park Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Independence Park Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Tampa, FL - Independence Park I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,531,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,526,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,716,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,531,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,242,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,773,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	561,000
Tampa, FL - Independence Park I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Tampa, FL - Independence Park I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Total Real Estate and Accumulated Depreciation [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	533,198,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,809,760,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(41,202,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,494,708,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	491,996,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,304,468,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,796,464,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	$ 947,567,000