LEASES - Leases Balance Sheets Location (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
LEASES
Operating lease right-of-use asset	$ 10,064	$ 11,341
Operating lease liability	$ 12,525	$ 13,970
Weighted-Average Remaining Lease Term - Operating leases	4 years 4 months 17 days	4 years 9 months 14 days
Weighted-Average Discount Rate - Operating leases	3.02%	3.04%