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FAIR VALUE MEASUREMENTS - Unobservable Inputs Non-recurring (Details) - Non-recurring - Level 3 - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items} |  |
Individually evaluated loans | $ 15,513 | $ 16,477
Capitalized servicing rights | 6,570 | 6,845
Premises held for sale | 252 | 252
Total | 22,335 | 23,574
Quoted prices for similar loans in active markets |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items} |  |
Individually evaluated loans | 11,945 | 13,587
Discount Cash Flows |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items} |  |
Individually evaluated loans | $ 3,568 | $ 2,890
Impaired loans | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items} |  |
Loss severity | 10.00% | 1.00%
Appraised value | $ 80 | $ 80
Cash flows | $ 3 | $ 100
Discount rate | 3.38% | 3.63%
Impaired loans | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items} |  |
Loss severity | 70.00% | 40.00%
Appraised value | $ 2,941 | $ 3,859
Cash flows | $ 707 | $ 539
Discount rate | 6.38% | 6.38%
Capitalized servicing rights |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items} |  |
Constant prepayment rate | 7.19% | 7.29%
Discount rate | 9.54% | 9.54%
Assets held for sale |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items} |  |
Premises held for sale | $ 252 | $ 252
Selling Costs | 6.00% | 6.00%
Assets held for sale | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items} |  |
Appraised value | $ 267 | $ 267

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