Condensed Consolidated Statement of Changes in Equity (USD $) In Thousands, except Share data	Total USD ($)	Common Stock	Treasury Stock USD ($)	Additional Paid-in Capital USD ($)	Retained Earnings USD ($)	Accumulated Other Comprehensive Income USD ($)
BEGINNING BALANCE at Dec. 31, 2010	$ 149,849			$ 73,381	$ 76,040	$ 428
BEGINNING BALANCE (in shares) at Dec. 31, 2010		31,174,651
Exercise of options (in shares)		191,015
Exercise of options	378			378
Exercise of warrants (in shares)		3,261,575
Exercise of warrants	1,270			1,270
Conversion of restricted stock units into common stock (in shares)		73,434
Repurchase of shares (in shares)			(20,790)
Repurchase of shares	(125)		(125)
Stock compensation expense	2,393			2,393
Foreign currency translation adjustment	863					863
Net income	11,416				11,416
ENDING BALANCE at Jun. 30, 2011	$ 166,044		$ (125)	$ 77,422	$ 87,456	$ 1,291
ENDING BALANCE (in shares) at Jun. 30, 2011		34,700,675	(20,790)