Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

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Income Taxes (Details) (USD $)
6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Income Taxes [Abstract]    
Uncertain tax benefit positions that would reduce the effective income tax rate if recognized $ 355,000  
Effective income tax rate 33.30% 42.00%
Federal tax rate 35.00%  
Decrease in income tax rate due to the effect of foreign operations 3.90%