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LEASES - Components of Lease Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
LEASES        
Amortization of right-of-use assets $ 333 $ 359 $ 1,033 $ 1,062
Interest on lease liabilities 6 41 45 144
Total finance lease cost 339 400 1,078 1,206
Operating lease cost 391 388 1,166 1,197
Total lease cost $ 730 $ 788 $ 2,244 $ 2,403