LEASES - Schedule of Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Lease Cost
Operating lease cost	$ 716	$ 741
Amortization of ROU asset	52	0
Interest on lease liabilities	33	0
Total finance lease cost	85	0
Total lease cost	801	741
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	739	744
Operating cash flows from finance leases	33	0
Financing cash flows from finance leases	39	0
Cash flows from operating and finance leases	811	744
ROU assets obtained in exchange for new operating lease liabilities, net of ROU assets disposals	$ 1,036	$ 9
Weighted-average remaining lease term - operating leases	4 years 1 month 20 days	4 years 11 months 4 days
Weighted-average remaining lease term - finance leases	12 years
Weighted-average discount rate - operating leases	4.20%	4.60%
Weighted-average discount rate - finance leases	5.10%