INCOME TAXES - Summary of Net Deferred Tax Asset And Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Bad debts	$ 17,321	$ 15,634
Pension and deferred compensation liability	2,351	2,006
Nonaccrual loan interest	600	892
Long-term incentive plan	1,896	1,212
Lease liability	1,078	1,190
Deferred loan fees	771	0
Other	191	745
Deferred tax asset	24,208	21,679
Deferred tax liabilities:
Depreciation	4,279	4,718
Loan servicing rights	717	1,162
State taxes	679	524
Intangible assets	1,270	1,265
REIT spillover dividend	1,180	1,180
Prepaid expenses	952	948
Lease right of use	1,078	1,190
Other	194	442
Deferred tax liability	10,349	11,429
Valuation allowance	0	0
Net deferred tax asset	$ 13,859	$ 10,250