Condensed Consolidated Statement of Stockholders' Equity (USD $) In Thousands, except Share data	Total USD ($)	Preferred Stock USD ($)	Preferred Stock Series B Preferred Stock	Common Stock USD ($)	Additional Paid-In Capital USD ($)	Accumulated Deficit USD ($)
Balance at Dec. 31, 2011	$ 7,810	$ 2		$ 99	$ 378,093	$ (370,384)
Balance, shares at Dec. 31, 2011		215,662		9,935,337
Stock-based compensation	1,091				1,091
Restricted stock grants, net of forfeitures				3	(3)
Restricted stock grants, net of forfeitures, shares				287,130
Issuance of Series B preferred stock, shares			20,569
Issuance of warrants	1,493				1,493
Issuance of common stock	7,438			22	7,416
Issuance of common stock, shares				2,186,575
Preferred stock dividends	(4,248)				(4,248)
Preferred stock accretion	(972)				(972)
Net loss	(11,161)					(11,161)
Balance at Jun. 30, 2012	$ 1,451	$ 2		$ 124	$ 382,870	$ (381,545)
Balance, shares at Jun. 30, 2012		236,231		12,409,042