INCOME TAXES (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Annual limitation on deferred tax asset	$ 3,100
Deferred tax assets, state operating loss carryforwards	9,900	$ 16,300
Valuation allowance	13,000	19,001
Tax credits	6,966	6,613	$ 7,613
Investment in low-income housing	9,300	10,400	5,100
Tax credits, new market	360	300
Unrecognized tax benefits	709	719
Unrecognized tax benefits, accrued interest and penalties	129	91
Solar Energy Tax Credit
Operating Loss Carryforwards [Line Items]
Tax credits	4,200	4,200	6,100
Historic Rehabilitation Credit
Operating Loss Carryforwards [Line Items]
Tax credits	1,100	1,000	720
Low-income Housing
Operating Loss Carryforwards [Line Items]
Tax credits	1,200	1,100	$ 538
Tax credits, expected utilization, 2023	1,000
Tax credits, expected utilization, 2024	790
Tax credits, expected utilization, 2025	740
Tax credits, expected utilization, 2026	705
Capital Loss Carryforward
Operating Loss Carryforwards [Line Items]
Valuation allowance	1,700	1,500
Decrease in valuation allowance	0	165
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	191,900	203,400
State and Local Jurisdiction | Operating Loss Carryforwards
Operating Loss Carryforwards [Line Items]
Valuation allowance	9,400	15,500
FSI
Operating Loss Carryforwards [Line Items]
Deferred tax assets, federal operating loss carryforwards	2,900	3,600
FSI | Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 14,000	$ 17,200