LEASES - Schedule of Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Lease Cost
Operating lease cost	$ 702	$ 817	$ 2,179	$ 2,381
Amortization of ROU asset	157	0	157	0
Interest on lease liabilities	104	0	104	0
Total lease cost	963	817	2,440	2,381
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	710	823	2,193	2,395
Operating cash flows from finance leases	104	0	104	0
Financing cash flows from finance leases	112	0	112	0
Cash flows from operating and finance leases	926	823	2,409	2,395
ROU assets obtained in exchange for new operating lease liabilities, net of ROU assets disposals	0	(240)	(98)	8,485
ROU assets obtained in exchange for new finance lease liabilities, net of ROU assets disposals	$ 2,782	$ 0	$ 2,782	$ 0
Weighted-average remaining lease term - operating leases	5 years 1 month 9 days	4 years 11 months 19 days	5 years 1 month 9 days	4 years 11 months 19 days
Weighted-average remaining lease term - finance leases	12 years 6 months		12 years 6 months
Weighted-average discount rate - operating leases	4.70%	4.60%	4.70%	4.60%
Weighted-average discount rate - finance leases	5.10%		5.10%