Consolidated Statement of Equity (USD $) In Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2009	$ 48,265	$ 61	$ (492)	$ 798,917	$ 13	$ (750,234)
Beginning balance, shares at Dec. 31, 2009		6,052
Correction for treatment of liabilities	(473)					(473)
Issuance of common stock, shares		231
Issuance of common stock	1,962	1		1,961
Repurchase of restricted stock, shares		10
Repurchase of restricted stock	157		130	27
Par value change resulting from reverse stock split	0	56		(56)
Stock based compensation	2,253			2,253
Net (loss) income (1)	(4,854)					(4,854)
Other comprehensive income	(3)
Ending balance at Dec. 31, 2010	46,993	6	(622)	803,160	10	(755,561)
Ending balance, shares at Dec. 31, 2010		6,273
Issuance of common stock, shares		88
Issuance of common stock	1,014	1		1,013
Repurchase of restricted stock	356		356
Stock based compensation	3,656			3,656
Net (loss) income (1)	(1,515)					(1,515)
Other comprehensive income	(11)				(11)
Ending balance at Dec. 31, 2011	49,781	7	(978)	807,829	(1)	(757,076)
Ending balance, shares at Dec. 31, 2011	6,361	6,361
Issuance of common stock, shares		194
Issuance of common stock	355			355
Repurchase of restricted stock	(1,204)		(1,204)
Stock based compensation	6,227			6,227
Net (loss) income (1)	13,907					13,907
Other comprehensive income	17				17
Ending balance at Dec. 31, 2012	$ 69,083	$ 7	$ (2,182)	$ 814,411	$ 16	$ (743,169)
Ending balance, shares at Dec. 31, 2012	6,546	6,555