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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
INCOME TAXES        
Tax expense $ 2,590 $ 2,788 $ 5,186 $ 4,796
Effective tax rate (as a percent)     22.70% 23.20%
Federal statutory rate     21.00% 21.00%