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LEASES (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Leases [Abstract]        
Operating lease cost $ 165 $ 135 $ 330 $ 269
Finance lease cost        
Amortization of right-of-use asset 61 45 135 84
Interest on lease liabilities 13 10 27 18
Total finance lease cost $ 74 $ 55 $ 162 $ 102