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Fair Value Disclosures - Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Risks and Uncertainties [Abstract]    
Allowance for loan losses $ 3,238,000 $ 10,843,000
Specific charges to value the real estate owned 411,000 581,000
Lower of cost or fair value reserve   644,000
Short-term borrowings maturity period 90 days  
Fair Value, Measurements, Recurring [Member]
   
Risks and Uncertainties [Abstract]    
Fair value liabilities $ 0 $ 0