CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands	Total	Comprehensive Income	Common stock	Additional paid-in capital	Accumulated deficit	Accumulated other comprehensive income (loss)	Treasury stock
Beginning Balance at Jan. 01, 2009	$ 107,992		$ 26	$ 450,739	$ (362,905)	$ 27,054	$ (6,922)
Beginning Balance (in shares) at Jan. 01, 2009			25,354
Net income (loss)	(40,609)	(40,609)			(40,609)
Other comprehensive income (loss), translation adjustments	7,455	7,455				7,455
Total Comprehensive Income (loss)		(33,154)
Purchase of treasury stock (in shares)			(243)
Purchase of treasury stock	(703)						(703)
Purchase of restricted stock from employees (in shares)			(29)
Purchase of restricted stock from employees	(75)						(75)
Issuance of shares for 401(k) plan contribution (in shares)			1,318
Issuance of shares for 401(k) plan contribution	1,227		1	(6,171)			7,397
Stock-based compensation (in shares)			322
Stock-based compensation	973			973
Ending Balance at Dec. 31, 2009	76,260		27	445,541	(403,514)	34,509	(303)
Ending Balance (in shares) at Dec. 31, 2009			26,722
Net income (loss)	(4,685)	(4,685)			(4,685)
Other comprehensive income (loss), translation adjustments	393	393				393
Total Comprehensive Income (loss)		(4,292)
Issuance of shares (in shares)			4,830
Issuance of shares	19,116		5	19,111
Purchase of treasury stock (in shares)			(16)
Purchase of treasury stock	(71)						(71)
Issuance of shares for 401(k) plan contribution (in shares)			121
Issuance of shares for 401(k) plan contribution	541			206			335
Stock-based compensation (in shares)			514
Stock-based compensation	1,724			1,724
Ending Balance at Dec. 31, 2010	93,278		32	466,582	(408,199)	34,902	(39)
Ending Balance (in shares) at Dec. 31, 2010			32,171
Net income (loss)	10,909	10,909			10,909
Other comprehensive income (loss), translation adjustments	(647)	(647)				(647)
Total Comprehensive Income (loss)		10,262
Purchase of restricted stock from employees (in shares)			(70)
Purchase of restricted stock from employees	(388)						(388)
Issuance of shares for 401(k) plan contribution (in shares)			92
Issuance of shares for 401(k) plan contribution	602			602
Stock-based compensation (in shares)			504
Stock-based compensation	3,603		1	3,602
Ending Balance at Dec. 31, 2011	$ 107,357		$ 33	$ 470,786	$ (397,290)	$ 34,255	$ (427)
Ending Balance (in shares) at Dec. 31, 2011			32,697