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Components of Accumulated Other Comprehensive Loss Included in Stockholders' Equity (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Other Comprehensive Income (Loss) [Line Items]    
Net unrealized (loss) gain on securities available-for-sale $ (636) $ 524
Net unrealized gain (loss) for funded (unfunded) status of defined benefit plan liability 346 (2,169)
Accumulated other comprehensive income (Loss), before taxes, total (290) (1,645)
Tax effect 99 558
Net-of-tax amount $ (191) $ (1,087)