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Loans - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2013
Financing Receivable, Recorded Investment [Line Items]      
Net deferred loan fees $ 38 $ 18  
Total loans 359,533 357,093 382,339
Consumer and Other Loans [Member] | Demand Deposit Overdrafts [Member]
     
Financing Receivable, Recorded Investment [Line Items]      
Total loans $ 213 $ 279