CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Comprehensive Income (Loss) [Member]	Preferred Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Non-controlling Interest [Member]
Balance, at beginning at Dec. 31, 2014	$ 233,448	$ (57,670)	$ 1	$ 87	$ (2)	$ 271,649	$ (56,451)	$ 18,164
Balance, at beginning (in shares) at Dec. 31, 2014				8,717,967
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series D preferred stock dividends (9.0% per year)	(900)					(900)
Net income (loss)	(7,504)	(7,504)					(7,636)	132
Contributions from non-controlling interests	11							11
Balance, at the end at Dec. 31, 2015	225,055	(65,174)	1	$ 87	(2)	270,749	(64,087)	18,307
Balance, at the end (in shares) at Dec. 31, 2015				8,717,967
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series D preferred stock dividends (9.0% per year)	(900)					(900)
Net income (loss)	322	322					37	285
Balance, at the end at Dec. 31, 2016	224,477	(64,852)	1	$ 87	(2)	269,849	(64,050)	18,592
Balance, at the end (in shares) at Dec. 31, 2016				8,717,967
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series D preferred stock dividends (9.0% per year)	(900)					(900)
Net income (loss)	(15,316)	(15,316)					(15,815)	499
Balance, at the end at Dec. 31, 2017	$ 208,261	$ (80,168)	$ 1	$ 87	$ (2)	$ 268,949	$ (79,865)	$ 19,091
Balance, at the end (in shares) at Dec. 31, 2017				8,717,967