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Note 5 - Credit Quality (Details Textual) $ in Thousands | 12 Months Ended | 22 Months Ended |
--- | --- | --- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Financing Receivable, Covered, before Allowance for Credit Loss, Total |  |  | $ 9,680
Financing Receivable, Collectively Evaluated for Impairment |  |  | 2,138,921
Loans Deemed to be Impaired, Threshold |  |  | 500
Financing Receivable, Nonaccrual, Interest Income | $ 72 |  |
Financing Receivable, Nonaccrual | $ 20,768 | $ 20,768 | 22,003
Performing Status Returned Period (Month) | 6 months |  |
Financing Receivable, Number of Loans Modified During Period |  | 4,066 |
Financing Receivable, Loans Modified During Period |  | $ 475,820 |
Financing Receivable, Deferred Payments | $ 2,920 | $ 2,920 |
Impaired Loans [Member] |  |  |
Financing Receivable, Collectively Evaluated for Impairment |  |  | 31,180
Covered Loans [Member] |  |  |
Financing Receivable, Nonaccrual |  |  | 297
Non-covered Loans [Member] |  |  |
Financing Receivable, 90 Days or More Past Due, Still Accruing |  |  | $ 295

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- Definition Deferred amounts on loans receivable related to loan modification programs offered to financial institution customers affected by COVID-19. + References No definition available. + Details
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- Definition Amount of loans receivable modified during period. The modification is related to loan modification programs offered to financial institution customers affected by COVID-19. + References No definition available. + Details
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- Definition The number of loans modified during period for customers affected by COVID-19. + References No definition available. + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount, before allowance, of finance receivable covered by loss sharing agreement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 + Details
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- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) + Details
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