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Consolidated Statement Of Stockholders' Equity (USD $)
In Thousands, except Share data
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Treasury Stock [Member]
Total
Balance, value at Dec. 31, 2011 $ 2,985 $ 45,966 $ 143,524 $ (2,250) $ (3,153) $ 187,072 [1]
Balance, shares at Dec. 31, 2011 29,845,047       2,260,996  
Stocks issued under ESPP, value 2 266       268
Stocks issued under ESPP, shares 19,766          
Cash dividends on common stock ($0.05 per share)     (1,380)     (1,380)
Foreign currency translation adjustment, net       542   542
Stock based compensation   422       422
Change in fair value of interest rate swaps       22   22
Stock options exercised; grants & terminations of restricted stocks 22 127       149
Stock options exercised; grants & terminations of restricted stocks, shares 218,253          
Excess tax benefits from share based payment arrangements   43       43
Net income     8,734     8,734
Balance, value at Mar. 31, 2012 $ 3,009 $ 46,824 $ 150,878 $ (1,686) $ (3,153) $ 195,872
Balance, shares at Mar. 31, 2012 30,083,066       2,260,996  
[1] The balance sheet at December 31, 2011 has been derived from the audited financial statements at that date.