LEASES - Schedule of Lease Costs (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Lease Cost
Operating lease cost	$ 781	$ 1,590
Other information
(Gains) and losses on sale and leaseback transactions, net	0	0
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	782	1,598
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 11	$ 8,862
Weighted-average remaining lease term - operating leases	4 years 10 months 13 days	4 years 10 months 13 days
Weighted-average discount rate - operating	4.50%	4.50%