LEASES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating lease, expense	$ 700	$ 600	$ 2,000	$ 1,800
Finance lease amortization expense	100	18	200	32
Finance lease, interest expense	$ 4	$ 2	$ 7	$ 2