Annual report pursuant to Section 13 and 15(d)

Components of Income Tax Expense (Detail)

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Components of Income Tax Expense (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Current      
Federal     $ 4,496
State 534 239 406
Total current 534 239 4,902
Deferred      
Federal (1,749) (828) 3,085
State (99) (55) 279
Total deferred (1,848) (883) 3,364
Income tax expense $ (1,314) $ (644) $ 8,266