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Note 16 - Fair Value Measurements (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Loans Receivable, Fair Value Disclosure | $ 15,088,000 | $ 14,035,000 |
Financing Receivable, before Allowance for Credit Loss | 2,433,015,000 | 2,218,852,000 | $ 1,754,175,000
Fair Value, Nonrecurring [Member] |  |  |
Assets, Fair Value Disclosure |  | 0 |
Residential Mortgage [Member] |  |  |
Loans Receivable, Fair Value Disclosure | 15,100,000 | 14,000,000 | 17,800,000
Increase (Decrease) in Finance Receivables | 447,000 | (1,700,000) | (29,000)
Residential Mortgage [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Loans Receivable, Fair Value Disclosure | 15,100,000 | 14,000,000 |
Financing Receivable, before Allowance for Credit Loss | 16,300,000 | 15,600,000 |
Increase (Decrease) in Finance Receivables | $ 447,000 | $ (1,700,000) | $ (29,000)

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- Definition The increase (decrease) during the reporting period in outstanding loans including accrued interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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