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Income Taxes - Income Tax Provision (Benefit) (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Federal      
Current provision $ 1,041 $ 821 $ 483
Deferred provision (benefit) 171 (256) (369)
Income tax provision $ 1,212 $ 565 $ 114