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Note 9 - Fair Value Measurements - Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Securities, Available-for-Sale, Excluding Accrued Interest | $ 439,676 | $ 437,735
Reported Value Measurement [Member] |  |
Cash and cash equivalents | 79,266 | 82,018
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 439,676 | 437,735
Loans, net | 1,006,873 | 1,005,375
FHLB stock | 6,234 | 6,234
FRB Stock | 1,384 | 1,380
Deposits | 1,366,827 | 1,371,101
Repurchase agreements | 14,940 | 22,073
Borrowings | 15,000 | 15,000
Estimate of Fair Value Measurement [Member] |  |
Cash and cash equivalents | 79,266 | 82,018
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 439,676 | 437,735
Loans, net | 971,530 | 981,114
FHLB stock | 6,234 | 6,234
FRB Stock | 1,384 | 1,380
Deposits | 1,365,575 | 1,371,073
Repurchase agreements | 14,940 | 22,073
Borrowings | 14,202 | 13,967
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Cash and cash equivalents | 79,266 | 82,018
Loans, net | 0 |
FHLB stock | 0 |
FRB Stock | 0 |
Deposits | 1,240,043 | 1,276,912
Repurchase agreements | 0 |
Borrowings | 0 |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 439,676 | 437,735
Loans, net | 0 |
FHLB stock | 6,234 | 6,234
FRB Stock | 1,384 | 1,380
Deposits | 0 |
Repurchase agreements | 14,940 | 22,073
Borrowings | 0 |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 0 |
Loans, net | 971,530 | 981,114
FHLB stock | 0 |
FRB Stock | 0 |
Deposits | 125,532 | 94,161
Repurchase agreements | 0 |
Borrowings | $ 14,202 | $ 13,967

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -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 Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E + Details
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