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SERVICING RIGHTS (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Commercial loans    
Commercial Loans    
Commercial Loans $ 43,200 $ 63,000
Servicing rights $ 147 170
Mortgage loans    
Mortgage Loans    
Annual constant prepayment speed (as a percent) 9.45%  
Discount rate (as a percent) 8.97%  
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 (495) (614)
Balance at end of period 1,677 1,965
Balance of loan servicing portfolio $ 233,356 $ 224,612
Mortgage servicing rights as % of portfolio 0.72% 0.87%