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Consolidated Statement Of Stockholders' Equity And Comprehensive Income (USD $)
In Thousands, except Share data
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income [Member]
Comprehensive Income [Member]
Treasury Stock [Member]
Total
Balance, value at Dec. 31, 2010$ 2,974$ 43,403$ 123,661$ (448) $ (3,153)$ 166,437
Balance, shares at Dec. 31, 201029,735,928    2,260,996 
Stocks issued under ESPP, value3231    234
Stocks issued under ESPP, shares29,192      
Cash Dividends on common stock  (848)   (848)
Foreign currency Translation adjustment, net   237237 237
Stock base compensation expense 523    523
Changes in fair value of interest swap   (246)(246) (246)
Stock grants, stock options exercised, and termination of restricted stock units3313    316
Stock grants, stock options exercised, and termination of restricted stock units, shares38,007      
Net Income  5,012 5,012 5,012
Total comprehensive income    5,003  
Balance, value at Mar. 31, 20112,98044,470127,825(457) (3,153)171,665
Balance, shares at Mar. 31, 201129,803,127    2,260,996 
Cash Dividends adjustment on common stock  22   22
Foreign currency Translation adjustment, net   197197 197
Stock base compensation expense 508    508
Changes in fair value of interest swap   (700)(700) (700)
Stock grants, stock options exercised, and termination of restricted stock units3(3)     
Stock grants, stock options exercised, and termination of restricted stock units, shares24,747      
Net Income  6,007 6,007 6,007
Total comprehensive income    5,504  
Balance, value at Jun. 30, 20112,98344,975133,854(960) (3,153)177,699
Balance, shares at Jun. 30, 201129,827,874    2,260,996 
Stocks issued under ESPP, value3228    231
Stocks issued under ESPP, shares25,741      
Cash Dividends on common stock  (1,379)   (1,379)
Foreign currency Translation adjustment, net   (988)(988) (988)
Stock base compensation expense 455    455
Changes in fair value of interest swap   (601)(601) (601)
Stock grants, stock options exercised, and termination of restricted stock units(2)(205)    (207)
Stock grants, stock options exercised, and termination of restricted stock units, shares(12,459)      
Net Income  4,618 4,618 4,618
Total comprehensive income    3,029  
Balance, value at Sep. 30, 2011$ 2,984$ 45,453$ 137,093$ (2,549) $ (3,153)$ 179,828
Balance, shares at Sep. 30, 201129,841,156    2,260,996