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Note 3 - Securities - Securities With Unrealized Losses (Details) $ in Thousands | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
--- | --- | ---
Count, less than 12 months | 10 | 2
Fair value, less than 12 months | $ 79,872 | $ 8,987
Unrealized loss, less than 12 months | $ (128) | $ (13)
Count, 12 months or more | 85 | 198
Fair value, 12 months or more | $ 50,823 | $ 134,306
Unrealized loss, 12 months or more | $ (770) | $ (3,580)
Count, total | 95 | 200
Fair value, total | $ 130,695 | $ 143,293
Unrealized loss, total | $ (898) | $ (3,593)
US Treasury Securities [Member] |  |
Count, less than 12 months | 0 | 0
Fair value, less than 12 months | $ 0 | $ 0
Unrealized loss, less than 12 months | $ 0 | $ 0
Count, 12 months or more | 73 | 170
Fair value, 12 months or more | $ 48,609 | $ 112,508
Unrealized loss, 12 months or more | $ (689) | $ (3,412)
Count, total | 73 | 170
Fair value, total | $ 48,609 | $ 112,508
Unrealized loss, total | $ (689) | $ (3,412)
US Government-sponsored Enterprises Debt Securities [Member] |  |
Count, less than 12 months | 10 | 2
Fair value, less than 12 months | $ 79,872 | $ 8,987
Unrealized loss, less than 12 months | $ (128) | $ (13)
Count, 12 months or more | 0 | 4
Fair value, 12 months or more | $ 0 | $ 17,951
Unrealized loss, 12 months or more | $ 0 | $ (49)
Count, total | 10 | 6
Fair value, total | $ 79,872 | $ 26,938
Unrealized loss, total | $ (128) | $ (62)
Residential Mortgage-Backed Securities [Member] |  |
Count, less than 12 months | 0 | 0
Fair value, less than 12 months | $ 0 | $ 0
Unrealized loss, less than 12 months | $ 0 | $ 0
Count, 12 months or more | 7 | 17
Fair value, 12 months or more | $ 1,364 | $ 2,627
Unrealized loss, 12 months or more | $ (69) | $ (91)
Count, total | 7 | 17
Fair value, total | $ 1,364 | $ 2,627
Unrealized loss, total | $ (69) | $ (91)
Collateralized Mortgage-Backed Securities [Member] |  |
Count, less than 12 months | 0 | 0
Fair value, less than 12 months | $ 0 | $ 0
Unrealized loss, less than 12 months | $ 0 | $ 0
Count, 12 months or more | 5 | 6
Fair value, 12 months or more | $ 850 | $ 1,003
Unrealized loss, 12 months or more | $ (12) | $ (20)
Count, total | 5 | 6
Fair value, total | $ 850 | $ 1,003
Unrealized loss, total | $ (12) | $ (20)
US States and Political Subdivisions Debt Securities [Member] |  |
Count, less than 12 months |  | 0
Fair value, less than 12 months |  | $ 0
Unrealized loss, less than 12 months |  | $ 0
Count, 12 months or more |  | 1
Fair value, 12 months or more |  | $ 217
Unrealized loss, 12 months or more |  | $ (8)
Count, total |  | 1
Fair value, total |  | $ 217
Unrealized loss, total |  | $ (8)

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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 continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479081/326-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-7 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-5 + Details
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