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Note 16 - Fair Value Measurements - Schedule of Reconciliation of Financial Assets and Liabilities with Unobservable Inputs (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Interest Rate Lock Commitments [Member] |  |  |  |
Beginning balance, derivative asset (liability) |  | $ 107 | $ 757 | $ 4,024
Purchases and issuances, derivative asset (liability) |  | 4,291 | 3,215 | 23,164
Sales and settlements, derivative asset (liability) |  | (4,069) | (3,865) | (26,431)
Ending balance, derivative asset (liability) |  | 329 | 107 | 757
Gain (Loss) Included in Earnings, derivative asset (liability) | [1] | 222 | (650) | (3,267)
Gain (Loss) Included in Other Comprehensive Income (Loss), derivative asset (liability) | [2] | 0 | 0 | 0
Mandatory and Best Effort Forward Commitments [Member] |  |  |  |
Beginning balance, derivative asset (liability) |  | (38) | 808 | (67)
Purchases and issuances, derivative asset (liability) |  | 66 | 6,383 | 2,526
Sales and settlements, derivative asset (liability) |  | (216) | (7,229) | (1,651)
Ending balance, derivative asset (liability) |  | (188) | (38) | 808
Gain (Loss) Included in Earnings, derivative asset (liability) | [1] | (150) | (846) | 875
Gain (Loss) Included in Other Comprehensive Income (Loss), derivative asset (liability) | [2] | $ 0 | 0 | 0
Securities Available for Sale [Member] |  |  |  |
Beginning balance, asset |  |  | $ 1,138 | 1,111
Purchases and Issuance, asset |  |  |  | 40
Sales and Settlements, asset |  |  |  | (13)
Ending balance, asset |  |  |  | 1,138
Gain (Loss) Included in Earnings, asset | [1] |  |  | 0
Gain (Loss) Included in Other Comprehensive Income (Loss), asset | [2] |  |  | $ 27
[1] | Relating to items held at end of period included in income.
[2] | Relating to items held at end of period included in other comprehensive income (loss).

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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of gain (loss) recognized in income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-3 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -SubTopic 10 -Topic 820 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-3 + Details
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