Consolidated Statements Of Stockholders' (Deficit) Equity (USD $) In Thousands	Common Stock [Member]	Treasury Stock [Member]	Paid In Capital [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2008	$ 394	$ (10,938)	$ 285,430	$ (249,638)	$ 25,248
Balance, shares at Dec. 31, 2008	13,231	(402)
Stock issuance	1				1
Stock issuance, shares	35
Net loss				(15,413)	(15,413)
Purchase of treasury stock		(7)			(7)
Purchase of treasury stock, shares		(1)
Stock-based compensation			1,473		1,473
Balance at Dec. 31, 2009	395	(10,945)	286,903	(265,051)	11,302
Balance, shares at Dec. 31, 2009	13,266	(403)
Stock issuance	5		36		41
Stock issuance, shares	66
Net loss				(12,579)	(12,579)
Purchase of treasury stock		(712)			(712)
Purchase of treasury stock, shares		(46)
Stock-based compensation			2,047		2,047
Balance at Dec. 31, 2010	400	(11,657)	288,986	(277,630)	99
Balance, shares at Dec. 31, 2010	13,332	(449)
Stock issuance	1		(1)
Stock issuance, shares	88
Net loss				(7,710)	(7,710)
Purchase of treasury stock		(26)			(26)
Purchase of treasury stock, shares		(4)
Stock-based compensation			2,012		2,012
Balance at Dec. 31, 2011	$ 401	$ (11,683)	$ 290,997	$ (285,340)	$ (5,625)
Balance, shares at Dec. 31, 2011	13,420	(453)