OPERATING SEGMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Rental and other property revenues	$ 23,756	$ 18,511	$ 46,060	$ 36,814
Property operating expenses	(10,929)	(9,359)	(21,793)	(18,562)
Depreciation	(5,107)	(4,271)	(9,751)	(8,552)
Mortgage and loan interest	(8,216)	(7,869)	(18,401)	(16,868)
Interest income	2,994	4,005	6,755	6,118
Gain on land sales	1,250	(159)	4,126	594
Segment operating income (loss)	3,748	858	6,996	(456)
Capital expenditures	4,923	2,024	9,198	3,239
Real estate assets	792,411		$ 792,411		$ 689,121
Property Sales
Gain (loss) on sale				13,057
Commercial Properties [Member]
Segment Reporting Information [Line Items]
Rental and other property revenues	6,678	4,425	$ 13,464	8,875
Property operating expenses	(3,134)	(2,968)	(7,147)	(5,845)
Depreciation	(2,197)	(1,733)	(4,092)	(3,524)
Mortgage and loan interest	(1,639)	(1,546)	(3,245)	(2,975)
Segment operating income (loss)	(292)	(1,822)	(1,020)	(3,469)
Capital expenditures	2,940	1,859	6,132	2,989
Real estate assets	160,403	129,607	160,403	129,607
Property Sales
Sales price		16,600		16,600
Cost of sale		(9,597)		(9,597)
Gain (loss) on sale		7,003		7,003
Apartments [Member]
Segment Reporting Information [Line Items]
Rental and other property revenues	17,070	14,072	32,543	27,917
Property operating expenses	(7,693)	(6,187)	(14,353)	(12,319)
Depreciation	(2,910)	(2,538)	(5,659)	(5,028)
Mortgage and loan interest	(3,293)	(3,754)	(9,364)	(9,949)
Segment operating income (loss)	3,174	1,593	3,167	621
Capital expenditures	1,498	99	1,755	99
Real estate assets	$ 476,391	$ 374,022	$ 476,391	374,022
Property Sales
Sales price				23,131
Cost of sale				(17,077)
Gain (loss) on sale				$ 6,054
Land [Member]
Segment Reporting Information [Line Items]
Rental and other property revenues
Property operating expenses	$ (129)	$ (204)	$ (310)	$ (393)
Depreciation
Mortgage and loan interest	(1,193)	$ (1,348)	$ (2,197)	$ (2,488)
Interest income
Gain on land sales	1,250	$ (159)	$ 4,126	$ 594
Segment operating income (loss)	(72)	(1,711)	1,619	(2,287)
Capital expenditures	485	66	1,311	151
Real estate assets	155,617	157,623	155,617	157,623
Property Sales
Sales price	1,878	717	9,135	2,367
Cost of sale	(628)	(876)	(5,009)	(1,773)
Gain (loss) on sale	1,250	(159)	4,126	594
Other [Member]
Segment Reporting Information [Line Items]
Rental and other property revenues	8	$ 14	53	22
Property operating expenses	27		$ 17	$ (5)
Depreciation
Mortgage and loan interest	(2,091)	$ (1,221)	$ (3,595)	$ (1,456)
Interest income	2,994	$ 4,005	$ 6,755	$ 6,118
Gain on land sales
Segment operating income (loss)	938	$ 2,798	$ 3,230	$ 4,679
Total Segments [Member]
Segment Reporting Information [Line Items]
Real estate assets	792,411	661,252	792,411	661,252
Property Sales
Sales price	1,878	17,317	9,135	42,098
Cost of sale	(628)	(10,473)	(5,009)	(28,447)
Gain (loss) on sale	$ 1,250	$ 6,844	$ 4,126	$ 13,651