Note 4 - Securities (Details Textual) $ in Thousands |
Jun. 30, 2025
USD ($)
Securities
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Dec. 31, 2024
USD ($)
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|---|---|---|
| Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss | $ 3,031 | $ 3,170 |
| Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Securities available-for-sale, fair values | Securities available-for-sale, fair values |
| Deferred Tax Asset, Debt Securities, Available-for-Sale, Unrealized Loss | $ 13,488 | $ 16,505 |
| Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | Securities | 537 | |
| Debt Securities, Available-for-Sale, Unrealized Loss Position | $ 569,718 | |
| Restricted Stock [Member] | ||
| Restricted Investments | 1,848 | $ 1,848 |
| National Bank of Blacksburg [Member] | Federal Home Loan Bank of Atlanta [Member] | ||
| Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged | $ 502,760 |
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- Definition Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Indicates line item in statement of financial position that includes accrued interest, after allowance for credit loss, on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of the collateral pledged in support of federal home loan bank advances outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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