LEASES - LESEE ACCOUNTING (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Operating lease expense	$ 600
Cash paid for amounts included in the measurement of operating lease liabilities	444
ROU assets obtained in exchange for operating lease obligations	$ 293
Weighted average remaining lease term	4 years 4 months 23 days
Weighted average discount rate	4.45%
Operating Lease Liabilities, Payments Due [Abstract]
Remainder of 2019	$ 1,396
2020	1,611
2021	1,453
2022	1,320
2023	1,766
Total operating lease payments	7,546
Less: imputed interest	731
Total operating lease liabilities	$ 6,815