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Note 5 - Mortgage Servicing Rights (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Servicing Asset at Amortized Cost [Table Text Block] |
|  | At or For the Year Ended |
|  | December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Beginning balance, at the lower of cost or fair value |  | $ | 18,017 |  |  | $ | 16,970 |  |  | $ | 12,595 |
Additions |  |  | 2,772 |  |  |  | 5,400 |  |  |  | 9,760 |
MSRs amortized |  |  | (3,565 | ) |  |  | (4,354 | ) |  |  | (7,444 | )
Recovery (impairment) of MSRs |  |  | (48 | ) |  |  | 1 |  |  |  | 2,059 |
Ending balance, at the lower of cost or fair value |  | $ | 17,176 |  |  | $ | 18,017 |  |  | $ | 16,970 |
MSRs held for sale, held at the lower of cost or fair value included in the ending balance above |  | $ | 8,086 |  |  | $ | — |  |  | $ | — |
Schedule of Servicing Assets at Fair Value [Table Text Block] |
|  | At December 31, |
Key assumptions: |  | 2023 |  |  | 2022 |
Weighted average discount rate |  |  | 9.4 | % |  |  | 9.6 | %
Conditional prepayment rate (“CPR”) |  |  | 7.2 | % |  |  | 8.2 | %
Weighted average life in years |  |  | 8.4 |  |  |  | 7.8 |
Schedule of Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets [Table Text Block] |
|  |  |  |  |  | December 31, |
|  |  |  |  |  | 2023 |  |  | 2022 |
Aggregate portfolio principal balance |  |  |  |  |  | $ | 2,832,016 |  |  | $ | 2,783,458 |
Weighted average rate of loans in servicing portfolio |  |  |  |  |  |  | 3.6 | % |  |  | 3.4 | %
At December 31, 2023 |  | Base |  |  | 0.5% Adverse Rate Change |  |  | 1.0% Adverse Rate Change |
Conditional prepayment rate |  |  | 7.2 | % |  |  | 8.0 | % |  |  | 9.3 | %
Fair value MSRs |  | $ | 38,163 |  |  | $ | 37,268 |  |  | $ | 35,819 |
Percentage of MSRs |  |  | 1.3 | % |  |  | 1.3 | % |  |  | 1.3 | %
Discount rate |  |  | 9.4 | % |  |  | 9.9 | % |  |  | 10.4 | %
Fair value MSRs |  | $ | 38,163 |  |  | $ | 37,301 |  |  | $ | 36,476 |
Percentage of MSRs |  |  | 1.3 | % |  |  | 1.3 | % |  |  | 1.3 | %
At December 31, 2022 |  | Base |  |  | 0.5% Adverse Rate Change |  |  | 1.0% Adverse Rate Change |
Conditional prepayment rate |  |  | 8.2 | % |  |  | 8.6 | % |  |  | 9.3 | %
Fair value MSRs |  | $ | 35,478 |  |  | $ | 34,997 |  |  | $ | 34,188 |
Percentage of MSRs |  |  | 1.3 | % |  |  | 1.3 | % |  |  | 1.2 | %
Discount rate |  |  | 9.6 | % |  |  | 10.1 | % |  |  | 10.6 | %
Fair value MSRs |  | $ | 35,478 |  |  | $ | 34,715 |  |  | $ | 33,984 |
Percentage of MSRs |  |  | 1.3 | % |  |  | 1.2 | % |  |  | 1.2 | %

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- Definition Tabular disclosure of a sensitivity analysis or stress test showing the hypothetical effect on the fair value of the transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) of two or more unfavorable variations from the expected levels for each key assumption that is reported, independently determined from any change in another key assumption, and a description of the objectives, methodology, and limitations of the sensitivity analysis or stress test. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481326/860-20-50-4 + Details
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- Definition Tabular disclosure of activity in the balance of servicing assets subsequently measured at amortized cost. Includes, but is not limited to, beginning and ending balances, additions, disposals, and amortization. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481229/860-50-50-4 + Details
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- Definition Tabular disclosure of the activity in the balance of servicing assets (including a description of where changes in fair value are reported in the statement of income for each period for which results of operations are presented), including but not limited to, the following: beginning and ending balances, additions (for instance, through purchases of servicing assets), disposals, changes in fair value during the period resulting from changes in inputs or assumptions used in the valuation model, other changes in fair value along with a description of those changes, and other changes that affect the balance along with a description of those changes. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481229/860-50-50-3 + Details
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