OPERATING LEASES (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) lease	Dec. 31, 2019 USD ($) lease	Jan. 01, 2019 USD ($)	Dec. 31, 2018 USD ($)
Right-of-use assets	$ 13,285,000	$ 12,926,000	$ 13,200,000
Operating lease liabilities	$ 16,447,000	$ 15,704,000	$ 15,500,000
Lease, Practical Expedients, Package [true false]	false
Lease, Practical Expedient, Use of Hindsight [true false]	false
Increase in right-of-use asset in exchange for new operating lease liabilities	$ 1,700,000
Number of lease commenced | lease	2	2
Number of leases modified | lease	2
Increase to both right-of-use asset and lease liability due to lease modification	$ 1,000,000.0
Decrease in right of use asset	831,000
Decrease in operating lease liability	$ 866,000
New operating lease liabilities		$ 1,300,000
Other liabilities.
Accrued lease obligations and lease incentive liabilities				$ 2,300,000