CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Comprehensive Income (Loss)	Preferred Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	Paid-In Capital [Member]	Retained Earnings [Member]	Non-controlling Interest
Balance, at beginning at Dec. 31, 2015	$ 176,889	$ (56,327)	$ 2,205	$ 156	$ (6,395)	$ 109,861	$ 17,130	$ 53,932
Balance, at beginning (in shares) at Dec. 31, 2015				15,930,145
Net income	(2,410)	(2,410)					(2,732)	322
Assumption of non-controlling interests	(268)					(268)
Sale of non-controlling interests	3,021			$ 3		3,018
Series A preferred stock cash dividend ($1.00 per share)	(1,101)					(1,101)
Balance, at the end at Dec. 31, 2016	176,131	(58,737)	2,205	$ 159	(6,395)	111,510	14,398	54,254
Balance, at the end (in shares) at Dec. 31, 2016				15,930,145
Net income	(8,876)	(8,876)					(8,431)	(445)
Assumption of non-controlling interests	(267)					(267)
Series A preferred stock cash dividend ($1.00 per share)	(1,105)					(1,105)
Balance, at the end at Dec. 31, 2017	165,883	(67,613)	2,205	$ 159	(6,395)	110,138	5,967	53,809
Balance, at the end (in shares) at Dec. 31, 2017				15,930,145
Net income	182,692	173,699					173,699	8,993
Conversion of Series A preferred stock into common stock	(395)		(400)	$ 5
Conversion of Series A preferred stock into common stock (in shares)				482,716
Redemption of Series D preferred stock	(10,000)					(10,000)
Acquisition of Series A preferred stock by consolidated subsidiary	(9,000)		(1,800)			(7,200)
Series D preferred dividend	(7,152)					(7,152)
Series A preferred stock cash dividend ($1.00 per share)	(901)					(901)
Balance, at the end at Dec. 31, 2018	$ 321,127	$ 106,086	$ 5	$ 164	$ (6,395)	$ 84,885	$ 179,666	$ 62,802
Balance, at the end (in shares) at Dec. 31, 2018				16,412,861