OPERATING SEGMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Rental and other property revenues	$ 11,947	$ 11,840	$ 23,865	$ 23,769
Property operating expenses	(5,810)	(7,322)	(12,119)	(13,319)
Depreciation	(3,418)	(3,439)	(6,812)	(6,548)
Segment operating (loss) income	(849)	(3,380)	(4,830)	(4,633)
Assets	394,944		394,944
Operating Segments [Member]
Segment Reporting Information [Line Items]
Rental and other property revenues	11,947	11,840	23,865	23,769
Property operating expenses	(5,810)	(7,322)	(12,119)	(13,319)
Depreciation	(3,418)	(3,439)	(6,812)	(6,548)
Mortgage and loan interest	(7,741)	(7,646)	(15,708)	(15,605)
Interest income	4,227	4,878	8,754	9,436
Loss on sale of income producing property		(80)		(80)
Gain on land sales	5,339	2,133	9,477	4,349
Segment operating (loss) income	4,544	364	7,457	2,002
Capital expenditures	8,296	10,295	18,038	24,311
Assets	394,944	386,501	394,944	386,501
Property Sales
Sales price	8,903	10,698	14,615	19,413
Cost of sale	(3,564)	(8,645)	(5,138)	(15,144)
Gain on sale	5,339	2,053	9,477	4,269
Commercial Properties [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Rental and other property revenues	7,863	8,020	15,747	16,247
Property operating expenses	(4,070)	(4,410)	(8,180)	(8,346)
Depreciation	(2,480)	(2,732)	(5,002)	(5,107)
Mortgage and loan interest	(1,345)	(1,947)	(2,717)	(3,914)
Segment operating (loss) income	(32)	(1,069)	(152)	(1,120)
Capital expenditures	232	346	941	4,045
Assets	146,576	152,852	146,576	152,852
Apartments [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Rental and other property revenues	4,084	3,818	8,116	7,518
Property operating expenses	(1,930)	(2,017)	(3,860)	(4,075)
Depreciation	(938)	(707)	(1,810)	(1,441)
Mortgage and loan interest	(1,177)	(1,002)	(2,349)	(1,936)
Loss on sale of income producing property		(80)		(80)
Segment operating (loss) income	39	12	97	(14)
Capital expenditures	7,400	9,596	14,433	17,434
Assets	180,835	153,950	180,835	153,950
Property Sales
Sales price	2,426	3,096	2,426	3,096
Cost of sale	(2,426)	(3,176)	(2,426)	(3,176)
Gain on sale		(80)		(80)
Land [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Property operating expenses	(95)	(88)	(193)	(45)
Mortgage and loan interest	(219)	(270)	(425)	(523)
Gain on land sales	5,339	2,133	9,477	4,349
Segment operating (loss) income	5,025	1,775	8,859	3,781
Capital expenditures	664	353	2,664	2,832
Assets	67,533	79,699	67,533	79,699
Property Sales
Sales price	6,477	7,602	12,189	16,317
Cost of sale	(1,138)	(5,469)	(2,712)	(11,968)
Gain on sale	5,339	2,133	9,477	4,349
Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Rental and other property revenues		2	2	4
Property operating expenses	285	(807)	114	(853)
Mortgage and loan interest	(5,000)	(4,427)	(10,217)	(9,232)
Interest income	4,227	4,878	8,754	9,436
Segment operating (loss) income	$ (488)	$ (354)	$ (1,347)	$ (645)