Net Income per Limited Partnership Unit (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net Income per Limited Partnership Unit (Textual) [Abstract]
Number of units used in computing per unit amounts	165,375	165,375	165,375	165,375
Percentage of net income attributable general partner			1.00%
Percentage of net income attributable limited partners			99.00%
Percentage of gain on sale and refinancing allocated to general partner			1.00%
Percentage of gain on sale and refinancing allocated to limited partners			99.00%
Percentage of additional gain on sale and refinancing allocated to general partner			12.00%
Percentage of additional gain on sale and refinancing allocated to limited partners			88.00%