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Aggregate Contractual or Notional Amounts and Fair Value of Derivative Financial Instruments (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Derivatives Not Designated As Hedges
Dec. 31, 2012
Derivatives Not Designated As Hedges
Oct. 31, 2013
Interest Rate Swap Agreement
Dec. 31, 2013
Interest Rate Swap Agreement
Designated as Hedging Instrument
Dec. 31, 2013
IRLCs
Derivatives Not Designated As Hedges
Dec. 31, 2012
IRLCs
Derivatives Not Designated As Hedges
Dec. 31, 2013
Forward Sale Loan Commitments
Derivatives Not Designated As Hedges
Derivative [Line Items]                  
Notional or Contractual Amount $ 11,690 $ 14,841 $ 8,237 $ 14,841 $ 3,500 $ 3,453 $ 3,677 $ 14,841 $ 4,560
Derivative Assets 84 144 41 144   43   144 41
Derivative Liabilities $ 41 $ 16 $ 41 $ 16     $ 41 $ 16