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NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 USD ($) account branch_location | Dec. 31, 2022 USD ($) reporting_unit account operating_segment | Dec. 31, 2021 USD ($) account
Property, Plant and Equipment [Line Items] |  |  |
Total number of service offices | branch_location | 23 |  |
Maturity of certificate of deposit investments |  | 9 months |
Cash, FDIC insured amount, balance in excess | $ 250 | $ 250 |
Number of accounts, FDIC insured amount, balance in excess | account | 0 | 0 | 0
Liquidating investment period (in years) |  | 10 years |
Other investments | $ 15,834 | $ 15,834 | $ 15,305
Interest income recognized debt past due not more than days |  | 90 days |
Loans charged off past due more than days |  | 180 days |
Closed end loan charged off past due more than days |  | 120 days |
Number of operating segments | operating_segment |  | 1 |
Number of reporting units | reporting_unit |  | 1 |
New market tax credit depletion |  | $ 650 | 0
Loan commitments outstanding | $ 1,164 | $ 1,164 |
Accounting Standards Update 2016-13 |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Increase in acquired loan portfolio percentage | 30.00% | 30.00% |
Increase in expected life of the loans percentage | 40.00% | 40.00% |
Increase in allowance non-cancelable off-balance sheet commitments percentage | 30.00% | 30.00% |
Decrease in post-tax retained earnings adjustment percentage | 0.20% | 0.20% |
Other Assets |  |  |
Property, Plant and Equipment [Line Items] |  |  |
New market tax credit depletion |  | $ 3,350 |
Minimum |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Intangible asset, useful life |  | 48 months |
Minimum | Accounting Standards Update 2016-13 |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Increase in allowance for credit losses percentage | 2500.00% | 2500.00% |
Minimum | Buildings and Components |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful lives assets |  | 10 years |
Minimum | Furniture Fixtures and Equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful lives assets |  | 3 years |
Maximum |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Intangible asset, useful life |  | 111 months |
Maximum | Accounting Standards Update 2016-13 |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Increase in allowance for credit losses percentage | 30.00% | 30.00% |
Maximum | Buildings and Components |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful lives assets |  | 40 years |
Maximum | Furniture Fixtures and Equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful lives assets |  | 10 years |
Investment in Federal Home Loan Bank Stock |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Other investments | $ 7,652 | $ 7,652 | 7,877
Federal Reserve Bank |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Other investments | 5,674 | 5,674 | 5,200
Bankers Bank Stock |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Other investments | $ 2,508 | $ 2,508 | $ 2,228
Commercial Loan |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Interest income discontinued over delinquent days |  | 90 days |
Closed End Consumer Loan |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Interest income discontinued over delinquent days |  | 120 days |
Real Estate and Open Ended Consumer Loans |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Interest income discontinued over delinquent days |  | 180 days |

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