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LOANS AND ALLOWANCE FOR LOAN LOSSES - Narrative (Details) | 12 Months Ended
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Dec. 31, 2021 USD ($) numberOfBank Category property | Dec. 31, 2020 USD ($) property loan numberOfBank
Activity in the allowance for loan losses: |  |
Number of additional collateralized loans in the process of foreclosure | numberOfBank | 6 | 5
Investment in loans in the process of foreclosure | $ 400,000 | $ 200,000
Foreclosed properties held | $ 2,400,000 |
Number foreclosed properties held | property |  | 32
Number of points in internal risk rating system | Category | 9 |
Number of categories in internal risk rating system considered as not criticized | Category | 6 |
Commercial relationship credit review threshold amount | $ 1,000,000 |
Past due period before loans placed in non-accrual status | 90 days |
Recent loan payment history before removal from non-accrual status | 6 months |
Residential |  |
Activity in the allowance for loan losses: |  |
Foreclosed properties held | $ 200,000 | $ 2,600,000
Number foreclosed properties held | property | 4 |
Increase (decrease) in impaired loans (percentage) | 7.30% | 56.60%
Consumer |  |
Activity in the allowance for loan losses: |  |
Number of additional collateralized loans in the process of foreclosure | loan |  | 11
Investment in loans in the process of foreclosure |  | $ 1,100,000
Related allowance |  | $ 0
Commercial |  |
Activity in the allowance for loan losses: |  |
Foreclosed properties held | $ 2,200,000 |
Number foreclosed properties held | property | 10 |
Increase (decrease) in impaired loans (percentage) | 92.70% |

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