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Consolidated Statements Of Stockholders' Equity And Comprehensive Income (Loss) (USD $)
In Thousands, except Share data
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income/(Loss) [Member]
Comprehensive Income/(Loss) [Member]
Treasury Stock [Member]
Total
Balance, value at Dec. 31, 2008 $ 2,920 $ 38,873 $ 120,896 $ (3,593)   $ (3,153) $ 155,943
Balance, shares at Dec. 31, 2008 29,209,863         2,260,996  
Stocks issued under ESPP, value 5 496         501
Stocks issued under ESPP, shares 48,492            
Cash dividends on common stock     (1,611)       (1,611)
Foreign currency translation adjustment, net       441 441   441
Unrealized loss on currency forward cover contracts       539 539   539
Stock based compensation   1,223         1,223
Changes in fair value of interest swap       870 870   870
Stock options exercised and grants of restricted stock units 33 937         970
Stock options exercised and grants of restricted stock units, shares 317,207            
Net Income (loss)     (5,789)   (5,789)   (5,789)
Total comprehensive income (loss)         (3,939)    
Balance, value at Dec. 31, 2009 2,958 41,529 113,496 (1,743)   (3,153) 153,087
Balance, shares at Dec. 31, 2009 29,575,562         2,260,996  
Stocks issued under ESPP, value 6 480         486
Stocks issued under ESPP, shares 60,047            
Cash dividends on common stock     (819)       (819)
Foreign currency translation adjustment, net       201 201   201
Stock based compensation   1,122         1,122
Changes in fair value of interest swap       1,094 1,094   1,094
Stock options exercised and grants of restricted stock units 10 272         282
Stock options exercised and grants of restricted stock units, shares 100,319            
Net Income (loss)     10,984   10,984   10,984
Total comprehensive income (loss)         12,279    
Balance, value at Dec. 31, 2010 2,974 43,403 123,661 (448)   (3,153) 166,437
Balance, shares at Dec. 31, 2010 29,735,928         2,260,996  
Stocks issued under ESPP, value 6 459         465
Stocks issued under ESPP, shares 54,933            
Cash dividends on common stock     (2,205)       (2,205)
Foreign currency translation adjustment, net       (933) (933)   (933)
Stock based compensation   1,994         1,994
Changes in fair value of interest swap       (869) (869)   (869)
Stock options exercised and grants of restricted stock units 5 110         115
Stock options exercised and grants of restricted stock units, shares 54,186            
Net Income (loss)     22,068   22,068   22,068
Total comprehensive income (loss)         20,266    
Balance, value at Dec. 31, 2011 $ 2,985 $ 45,966 $ 143,524 $ (2,250)   $ (3,153) $ 187,072
Balance, shares at Dec. 31, 2011 29,845,047         2,260,996