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LEASES - Components of Lease Cost (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Finance lease cost:    
Amortization of right-of-use assets $ 347 $ 351
Interest on lease liabilities 24 55
Total finance lease cost 371 406
Operating lease cost 388 443
Total lease cost $ 759 $ 849