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SERVICING RIGHTS (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Changes in mortgage servicing rights capitalized and amortized, along with the aggregate activity in related valuation allowances    
Valuation allowance $ 0  
Commercial loans    
Commercial Loans    
Commercial Loans 41,000 $ 63,000
Servicing rights $ 140 170
Mortgage loans    
Mortgage Loans    
Annual constant prepayment speed (as a percent) 10.74%  
Discount rate (as a percent) 9.59%  
Changes in mortgage servicing rights capitalized and amortized, along with the aggregate activity in related valuation allowances    
Balance at beginning of period $ 1,965 1,994
Additions from loans sold with servicing retained   585
Acquired MSRs 207  
Amortization (599) (614)
Balance at end of period 1,573 1,965
Balance of loan servicing portfolio $ 221,355 $ 224,612
Mortgage servicing rights as % of portfolio 0.71% 0.87%