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Note 4 - Securities - Available for Sale Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Securities, Available-for-sale, Amortized Cost, Total | $ 460,103 | $ 521,485
Available for sale securities, gross unrealized gains | 0 | 10,865
Available for sale securities, gross unrealized losses | (101,068) | (5,461)
Total securities available-for-sale | 359,035 | 526,889
US Government-sponsored Enterprises Debt Securities [Member] |  |
Debt Securities, Available-for-sale, Amortized Cost, Total | 8,883 | 8,883
Available for sale securities, gross unrealized gains | 0 | 0
Available for sale securities, gross unrealized losses | (1,338) | (214)
Total securities available-for-sale | 7,545 | 8,669
US Treasury Securities [Member] |  |
Debt Securities, Available-for-sale, Amortized Cost, Total | 394 | 400
Available for sale securities, gross unrealized gains | 0 | 0
Available for sale securities, gross unrealized losses | 0 | 0
Total securities available-for-sale | 394 | 400
Collateralized Mortgage Obligations and Residential Mortgage Backed Securities [Member] |  |
Debt Securities, Available-for-sale, Amortized Cost, Total | 166,651 | 187,279
Available for sale securities, gross unrealized gains | 0 | 961
Available for sale securities, gross unrealized losses | (29,370) | (3,539)
Total securities available-for-sale | 137,281 | 184,701
US States and Political Subdivisions Debt Securities [Member] |  |
Debt Securities, Available-for-sale, Amortized Cost, Total | 282,002 | 322,750
Available for sale securities, gross unrealized gains | 0 | 9,904
Available for sale securities, gross unrealized losses | (69,214) | (527)
Total securities available-for-sale | 212,788 | 332,127
Collateralized Debt Obligations [Member] |  |
Debt Securities, Available-for-sale, Amortized Cost, Total | 2,173 | 2,173
Available for sale securities, gross unrealized gains | 0 | 0
Available for sale securities, gross unrealized losses | (1,146) | (1,181)
Total securities available-for-sale | $ 1,027 | $ 992

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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