FAIR VALUE MEASUREMENTS - Unobservable Inputs Non-recurring (Details) - Non-recurring - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Individually evaluated loans	$ 8,324	$ 8,746
Capitalized servicing rights	5,263	3,605
Premises held for sale	226	962
Total	13,813	13,313
Quoted prices for similar loans in active markets
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Individually evaluated loans	4,780	6,128
Discount Cash Flows
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Individually evaluated loans	$ 3,544	$ 2,618
Impaired loans | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Loss severity	10.00%	0.00%
Appraised value	$ 71	$ 0
Cash flows	$ 6	$ 19
Discount rate	2.88%	3.50%
Impaired loans | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Loss severity	70.00%	0.70%
Appraised value	$ 1,792	$ 1,730
Cash flows	$ 931	$ 953
Discount rate	9.50%	9.50%
Capitalized servicing rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Constant prepayment rate (CPR)	12.47%	18.53%
Discount rate	9.53%	10.05%
Assets held for sale
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Appraised value	$ 240
Selling Costs	6.00%	6.00%
Assets held for sale | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Appraised value		$ 220
Assets held for sale | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Appraised value		$ 386