Consolidated Statements Of Stockholders' Equity (USD $) In Thousands	Preferred A Stock [Member]	Preferred C Stock [Member]	Common Stock Warrants [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Total Shareholder Equity [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2011	$ 8	$ 0	$ 252	$ 29	$ 121,821	$ (85,398)	$ 36,712	$ 135	$ 36,847
Stock-based compensation	0	0	0	0	44	0	44	0	44
Preferred stock offering	0	30	0	0	13,129	0	13,159	0	13,159
Preferred dividends	0	0	0	0	0	(3,169)	(3,169)	0	(3,169)
Net loss	0	0	0	0	0	(10,210)	(10,210)	(20)	(10,230)
Balance at Dec. 31, 2012	8	30	252	29	134,994	(98,777)	36,536	115	36,651
Stock-based compensation	0	0	0	0	47	0	47	0	47
Warrant expiration	0	0	(252)	0	252	0	0	0	0
Preferred dividends	0	0	0	0	0	(2,619)	(2,619)	0	(2,619)
Net loss	0	0	0	0	0	(1,351)	(1,351)	(2)	(1,353)
Balance at Dec. 31, 2013	8	30	0	29	135,293	(102,747)	32,613	113	32,726
Stock-based compensation	0	0	0	0	34	0	34	0	34
Rights offering	0	0	0	18	2,573	0	2,591	0	2,591
Net loss	0	0	0	0	0	(16,236)	(16,236)	(23)	(16,259)
Balance at Dec. 31, 2014	$ 8	$ 30	$ 0	$ 47	$ 137,900	$ (118,983)	$ 19,002	$ 90	$ 19,092