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MORTGAGE BANKING INCOME (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Other Income and Expenses [Abstract]      
Loan servicing fees $ 5,159 $ 5,337 $ 5,421
Amortization of mortgage servicing rights (1,859) (2,288) (5,066)
Net gain on sales of residential loans 4,085 4,069 7,631
Unrealized gain (loss) on interest rate locks (70) (156) 83
Total mortgage banking income $ 7,315 $ 6,962 $ 8,069