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Deposits - Scheduled Maturities of Time Deposits (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Deposits [Abstract]    
2016 $ 80,485  
2017 16,826  
2018 15,141  
2019 11,843  
2020 15,013  
Thereafter 1,793  
Time deposits $ 141,101 $ 101,734