RIGHT OF USE ASSET AND LEASE LIABILITY - Supplemental Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
RIGHT OF USE ASSET AND LEASE LIABILITY
Right-of-use assets, net	$ 4,535	$ 4,644
Lease liabilities	$ 4,676
Weighted-average remaining lease term	9 years
Weighted-average discount rate	3.09%