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SERVICING RIGHTS (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Commercial loans    
Commercial Loans    
Commercial Loans $ 39,737 $ 43,200
Servicing rights $ 117 147
Mortgage loans    
Mortgage Loans    
Annual constant prepayment speed (as a percent) 10.84%  
Discount rate (as a percent) 9.73%  
Changes in mortgage servicing rights capitalized and amortized, along with the aggregate activity in related valuation allowances    
Balance at beginning of period $ 1,573 1,965
Acquired MSRs   207
Amortization (411) (495)
Balance at end of period 1,162 1,677
Balance of loan servicing portfolio $ 204,087 $ 233,356
Mortgage servicing rights as % of portfolio 0.57% 0.72%