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Note 9 - Fair Value Measurements (Details Textual) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Liabilities, Fair Value Disclosure | $ 0 |  | $ 0
Impaired Loan [Member] |  |  |
Provision for Loan, Lease, and Other Losses | $ 40,000 | $ 1,000 |
Fair Value, Inputs, Level 3 [Member] | Impaired Loan [Member] | Minimum [Member] |  |  |
Fair Value Inputs, Estimated Selling Costs | 20.00% |  |
Fair Value, Inputs, Level 3 [Member] | Impaired Loan [Member] | Maximum [Member] |  |  |
Fair Value Inputs, Estimated Selling Costs | 24.00% |  |
Fair Value, Inputs, Level 3 [Member] | Impaired Loan [Member] | Weighted Average [Member] |  |  |
Fair Value Inputs, Estimated Selling Costs | 23.00% |  |

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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + 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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(2) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 + Details
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