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Loans - Composition of Loan Portfolio (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Loans and Leases Receivable, Net Amount [Abstract]    
Gaming $ 23,747 $ 29,570
Residential and land development 16,873 19,403
Real estate, construction 39,976 44,987
Real estate, mortgage 242,128 237,158
Commercial and industrial 26,049 35,007
Other 9,419 9,224
Total $ 358,192 $ 375,349