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NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) | 9 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2021 USD ($) subsidiary segment | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Jan. 01, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2019 USD ($)
Retained earnings | $ 360,003,000 |  |  |  | $ 300,804,000 |  |  |
Less allowance | 80,670,000 | $ 78,894,000 |  | $ 84,376,000 | 84,376,000 | $ 79,582,000 | $ 60,827,000 | $ 36,001,000
Debt Securities, Held-to-maturity, Allowance for Credit Loss | $ 174,000 | $ 174,000 |  |  |  |  |  |
Number of subsidiaries commercial banks | subsidiary | 4 |  |  |  |  |  |  |
Number of portfolio segments | segment | 8 |  |  |  |  |  |  |
Number of years borrower classified to special mention class | 1 year |  |  |  |  |  |  |
Lending Threshold Requiring Additional Loan Review | $ 1,000,000 |  |  |  |  |  |  |
Other Assets |  |  |  |  |  |  |  |
Accrued investment income receivable | 20,000,000 |  |  |  |  |  |  |
Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |  |  |  |  |
Less allowance |  |  |  | (8,102,000) |  |  |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss |  |  |  | 183,000 |  |  |  |
Off-Balance Sheet, Credit Loss, Liability |  |  |  | 9,117,000 |  |  |  |
Accounting Standards Update 2016-13 |  |  |  |  |  |  |  |
Retained earnings |  |  | $ 937,000 |  |  |  |  |
Less allowance | (8,102,000) |  |  |  |  |  |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss | $ 183,000 |  |  |  |  |  |  |
Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |  |  |  |  |
Retained earnings |  |  |  | 937,000 |  |  |  |
Less allowance |  |  |  | (8,100,000) |  |  |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss |  |  |  | 183,000 |  |  |  |
Off-Balance Sheet, Credit Loss, Liability |  |  |  | 9,100,000 |  |  |  |
Subsidiaries [Member] | Fixed Rate Residential Mortgage [Member] |  |  |  |  |  |  |  |
Financing receivable, term | 15 years |  |  |  |  |  |  |
Commercial Portfolio Segment [Member] |  |  |  |  |  |  |  |
Less allowance | $ 34,790,000 |  |  | 35,421,000 | 35,421,000 | $ 33,827,000 | $ 25,748,000 | $ 16,072,000
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |  |  |  |  |
Less allowance |  |  |  | $ (35,421,000) |  |  |  |
Commercial Portfolio Segment [Member] | Accounting Standards Update 2016-13 |  |  |  |  |  |  |  |
Less allowance |  |  |  |  | $ (35,421,000) |  |  |
Minimum |  |  |  |  |  |  |  |
Minimum number of months of repayment performance to restore to accrual status, monthly payment loans | 6 months |  |  |  |  |  |  |
Residual Value Percent of Cost | 3.00% |  |  |  |  |  |  |
Minimum | Subsidiaries [Member] | Adjustable Rate Residential Mortgage [Member] |  |  |  |  |  |  |  |
Financing receivable, term | 1 year |  |  |  |  |  |  |
Minimum | Commercial Portfolio Segment [Member] | Term Loan [Member] |  |  |  |  |  |  |  |
Financing receivable, average term | 3 years |  |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |
Minimum number of years of repayment performance to restore to accrual status, quarterly or semi-monthly payment loans | 1 year |  |  |  |  |  |  |
Residual Value Percent of Cost | 25.00% |  |  |  |  |  |  |
Maximum | Subsidiaries [Member] | Adjustable Rate Residential Mortgage [Member] |  |  |  |  |  |  |  |
Financing receivable, term | 5 years |  |  |  |  |  |  |
Maximum | Low Income Housing Tax Credit Permanent Loans [Member] |  |  |  |  |  |  |  |
Financing receivable, term | 20 years |  |  |  |  |  |  |
Maximum | Lines Of Credit [Member] |  |  |  |  |  |  |  |
Financing receivable, term | 365 days |  |  |  |  |  |  |
Maximum | Commercial Portfolio Segment [Member] | Term Loan [Member] |  |  |  |  |  |  |  |
Financing receivable, term | 7 years |  |  |  |  |  |  |
Financing receivable, average term | 5 years |  |  |  |  |  |  |

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