Quarterly report pursuant to sections 13 or 15(d)

Income Taxes - Additional Information (Details)

v2.4.0.6
Income Taxes - Additional Information (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Income Tax Disclosure [Abstract]    
Income tax expense $ 523 $ 608
Tax effects of goodwill amortized for income tax purposes $ 295 $ 488