Consolidated Statements of Shareholders' Equity and Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2009	$ 52,483	$ 4,414	$ 41,136	$ 6,933
Balance, shares at Dec. 31, 2009		30,744
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(22,841)		(22,841)
Foreign currency translation adjustment, including income tax benefit	520			520
Comprehensive income	(22,321)
Stock-based compensation expense	637	637
Balance at Dec. 31, 2010	30,799	5,051	18,295	7,453
Balance, shares at Dec. 31, 2010		30,744
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	1,420		1,420
Foreign currency translation adjustment, including income tax benefit	(575)			(575)
Comprehensive income	845
Stock-based compensation expense	306	306
Common stock issued under equity compensation plan, shares		3
Common stock issued under equity compensation plan, value	3	3
Balance at Dec. 31, 2011	$ 31,953	$ 5,360	$ 19,715	$ 6,878
Balance, shares at Dec. 31, 2011		30,747