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SERVICING RIGHTS (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Commercial loans      
Commercial Loans      
Commercial Loans $ 49,500 $ 46,000  
Servicing rights $ 162 190  
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 $ 1,994
Additions from loans sold with servicing retained   100 585
Amortization (196) (214) (614)
Balance at end of period 1,769 1,880 1,965
Balance of loan servicing portfolio $ 219,080 $ 223,147 $ 224,612
Mortgage servicing rights as % of portfolio 0.81% 0.84% 0.87%