QUARTERLY RESULTS OF OPERATIONS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Total operating revenues	$ 12,318	$ 11,883	$ 11,840	$ 11,929	$ 24,761	$ 33,505	$ 31,607	$ 31,082	$ 30,905	$ 31,491	$ 31,302	$ 31,535
Total operating expenses	14,356	12,948	15,220	13,182	24,240	27,734	26,966	25,894	27,606	25,725	25,460	26,337	$ 55,706	$ 104,834	$ 105,128
Operating income (loss)	(2,038)	(1,065)	(3,380)	(1,253)	521	5,771	4,641	5,188	3,299	5,766	5,842	5,198	(7,736)	16,121	20,105
Other (expense) income	(12,341)	(11,841)	(4,639)	(6,389)	(3,404)	5,896	2,731	(6,624)	(14,729)	(8,967)	(15,613)	(10,658)	(35,210)	(1,401)	(49,967)
(Loss) income before gain on formation of joint venture, gain on sales, non-contolling interest, and taxes	(14,379)	(12,906)	(8,019)	(7,642)	(2,883)	11,667	7,372	(1,436)	(11,430)	(3,201)	(9,771)	(5,460)	(42,946)	14,720	(29,862)
Gain (loss) on sale of income producing properties			(80)						1	9,841			(80)		9,842
Gain on formation of joint venture					154,126
Gain (loss) on land sales	5,400	5,140	2,133	2,216	3,826	12,243		1,335	4,385	530	(476)	445	14,889	17,404	4,884
Income tax benefit (expense)	2,000				(2,418)	(792)			(180)				(2,000)	3,210	180
Net (loss) income from continued operations	(6,979)	(7,766)	(5,966)	(5,426)	152,651	23,118	7,372	(101)	(7,224)	7,170	(10,247)	(5,015)	(26,137)	183,040	(15,316)
Net (loss) income	(6,979)	(7,766)	(5,966)	(5,426)	152,651	23,118	7,372	(101)	(7,224)	7,170	(10,247)	(5,015)	(26,137)	183,040	(15,316)
Less: net (income) loss attributable to non-controlling interest	(200)	(21)	(379)	(183)	(417)	(915)	(126)	(132)	(121)	(96)	(163)	(119)
Preferred dividend requirement					(227)	(227)	(224)	(222)	(230)	(224)	(224)	(222)
Net (loss) income applicable to common shares	$ (7,179)	$ (7,787)	$ (6,345)	$ (5,609)	$ 152,007	$ 21,976	$ 7,022	$ (455)	$ (7,575)	$ 6,850	$ (10,634)	$ (5,356)	$ (26,920)	$ 180,550	$ (16,715)
Earnings per share - basic
(Loss) income from continued operations (in dollars per share)	$ (.81)	$ (0.89)	$ (0.68)	$ (0.62)	$ 17.44	$ 2.52	$ 0.81	$ (0.05)	$ (0.88)	$ 0.79	$ (1.22)	$ (0.61)	$ (3.00)	$ 20.89	$ (1.86)
Net (loss) income applicable to common shares (in dollars per share)	$ (.83)	$ (0.89)	$ (0.73)	$ (0.64)	$ 17.44	$ 2.52	$ 0.81	$ (0.05)	$ (0.88)	$ 0.79	$ (1.22)	$ (0.61)	$ (3.09)	$ 20.71	$ (1.92)
Weighted average common shares used in computing earnings per share	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767
Earnings per share - diluted
(Loss) income from continued operations (in dollars per share)	$ (0.81)	$ (0.89)	$ (0.68)	$ (0.62)	$ 17.44	$ 2.52	$ 0.81	$ (0.05)	$ (0.88)	$ 0.79	$ (1.22)	$ (0.61)	$ (3.00)	$ 20.89	$ (1.86)
Net (loss) income applicable to common shares (in dollars per share)	$ (0.83)	$ (0.89)	$ (0.73)	$ (0.64)	$ 17.44	$ 2.52	$ 0.81	$ (0.05)	$ (0.88)	$ 0.79	$ (1.22)	$ (0.61)	$ (3.09)	$ 20.71	$ (1.92)
Weighted average common shares used in computing diluted earnings per share	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767	8,717,767