Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]
Balance, Value at Dec. 31, 2008	$ 40,768	$ 2,747	$ 146,846	$ (108,754)	$ (71)
Balance, Shares at Dec. 31, 2008		68,683,982			(9,395)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(4)			(4)
Share-based compensation, value	662	1	661
Share-based compensation, shares		30,000
Balance, Value at Dec. 31, 2009	41,426	2,748	147,507	(108,758)	(71)
Balance, Shares at Dec. 31, 2009		68,713,982			(9,395)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	1,476			1,476
Issuance of stock under employee stock purchase plan, value	153	35	118
Issuance of stock under employee stock purchase plan, shares		850,000
Share-based compensation, value	571	1	570
Share-based compensation, shares		35,000
Balance, Value at Dec. 31, 2010	43,626	2,784	148,195	(107,282)	(71)
Balance, Shares at Dec. 31, 2010		69,598,982			(9,395)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(3,524)			(3,524)
Share-based compensation, value	647	3	644
Share-based compensation, shares		80,000
Balance, Value at Dec. 31, 2011	$ 40,749	$ 2,787	$ 148,839	$ (110,806)	$ (71)
Balance, Shares at Dec. 31, 2011		69,678,982			(9,395)