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SERVICING RIGHTS - Small Business Administration Servicing Rights (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Servicing Asset at Amortized Cost, Balance [Roll Forward]        
Balance at beginning of period $ 1,786 $ 1,618 $ 1,856 $ 1,496
Additions 109 160 109 346
Amortization, including prepayments (83) (53) (153) (100)
Impairment (5) 0 (5) (17)
Balance at end of period $ 1,807 $ 1,725 $ 1,807 $ 1,725