Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

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Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Income Tax Disclosure [Abstract]        
Provision (benefit) for income tax $ 63 $ 185 $ 145 $ (694)
Effective Income Tax Rate (19.00%) (16.90%) (26.30%) 27.40%