OPERATING LEASES (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
OPERATING LEASES
Right-of-use assets	$ 12,577,000	$ 12,926,000
Operating lease liabilities	$ 15,356,000	$ 15,704,000
Weighted-average discount rate	3.50%
Weighted-average remaining lease term	11 years 1 month 6 days
Cash paid for amounts included in the measurement of operating lease liabilities	$ 481,000