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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
INCOME TAXES        
Income tax expense $ 1,895 $ 2,202 $ 6,691 $ 8,238
Effective tax rate (as a percent)     23.30% 30.50%
Statutory rate (as a percent)     21.00% 21.00%