Consolidated Statements of Shareholders' Equity and Comprehensive Loss (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2010	$ 161	$ 81,793	$ (53,857)	$ (487)	$ 27,610
Balance (in Shares) at Dec. 31, 2010	16,054,000
Net income (loss)			(4,246)		(4,246)
Total comprehensive income (loss)				(941)	(941)
Share-based compensation		1,005			1,005
Exercise of stock options	1	90			91
Exercise of stock options (in Shares)	105,000
Vesting of restricted stock units	3	255			258
Vesting of restricted stock units (in Shares)	350,000
Shares issued for 401(k) match	1	264			265
Shares issued for 401(k) match (in Shares)	130,000				130,000
Balance at Dec. 31, 2011	166	83,407	(58,103)	(1,428)	24,042
Balance (in Shares) at Dec. 31, 2011	16,639,000				16,639,704
Net income (loss)			(22,301)		(22,301)
Total comprehensive income (loss)				(897)	(897)
Share-based compensation		938			938
Exercise of stock options		1			1
Exercise of stock options (in Shares)	2,000				(1,667)
Vesting of restricted stock units	3	(93)			(90)
Vesting of restricted stock units (in Shares)	261,000
Shares issued for 401(k) match	2	286			288
Shares issued for 401(k) match (in Shares)	233,000				233,000
Balance at Dec. 31, 2012	$ 171	$ 84,539	$ (80,404)	$ (2,325)	$ 1,981
Balance (in Shares) at Dec. 31, 2012	17,135,000				17,135,239