Consolidated Statements of Stockholders' Equity and Other Comprehensive Income (Loss) (USD $) In Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Balance at Dec. 31, 2008	$ 62,567	$ 65	$ (331)	$ 799,037	$ 9	$ (736,213)
Balance, shares at Dec. 31, 2008		6,417
Issuance of common stock, shares		25
Issuance of common stock	259			259
Repurchase of restricted stock, shares		(20)
Repurchase of restricted stock	(161)		(161)
Repurchase of common stock, shares		(370)
Repurchase of common stock	(3,034)	(4)		(3,030)
Stock based compensation	2,651			2,651
Net income (loss)	(14,021)					(14,021)
Unrealized gain on marketable securites	4				4
Comprehensive income (loss)	(14,017)
Balance at Dec. 31, 2009	48,265	61	(492)	798,917	13	(750,234)
Balance, shares at Dec. 31, 2009		6,052
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 income (loss)	(4,448)					(4,448)
Foreign currency translation adjustment	(3)				(3)
Comprehensive income (loss)	(4,451)
Balance at Dec. 31, 2010	47,872	6	(622)	803,160	10	(754,682)
Balance, shares at Dec. 31, 2010	6,273	6,273
Issuance of common stock, shares		88
Issuance of common stock	1,014	1		1,013
Repurchase of restricted stock, shares		0
Repurchase of restricted stock	(356)		(356)
Stock based compensation	3,656			3,656
Net income (loss)	(1,190)					(1,190)
Foreign currency translation adjustment	(11)				(11)
Comprehensive income (loss)	(1,201)
Balance at Dec. 31, 2011	$ 50,985	$ 7	$ (978)	$ 807,829	$ (1)	$ (755,872)
Balance, shares at Dec. 31, 2011	6,361	6,361