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v3.23.2

Note 3 - Investment Securities - Portfolio of Securities Available-for-sale (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Amortized cost | $ 703,509 |  | $ 721,799
Gross unrealized gains | 189 |  | 289
Gross unrealized losses |  | $ (90,879) | (87,204)
Securities available-for-sale | 612,819 | 612,819 | 634,884
Debt Securities, Available-for-Sale, Allowance for Credit Loss | 0 | 0 | 0
US Government Agencies Debt Securities [Member] |  |  |
Amortized cost | 54,102 |  | 54,889
Gross unrealized gains | 0 |  | 0
Gross unrealized losses |  | (10,949) | (10,439)
Securities available-for-sale |  | 43,153 | 44,450
Debt Securities, Available-for-Sale, Allowance for Credit Loss |  | 0 | 0
Residential Mortgage-Backed Securities [Member] |  |  |
Amortized cost | 465,856 |  | 475,263
Gross unrealized gains | 80 |  | 178
Gross unrealized losses |  | (56,810) | (57,863)
Securities available-for-sale |  | 409,126 | 417,578
Debt Securities, Available-for-Sale, Allowance for Credit Loss |  | 0 | 0
Commercial Mortgage-Backed Securities [Member] |  |  |
Amortized cost | 25,364 |  | 25,485
Gross unrealized gains | 0 |  | 0
Gross unrealized losses |  | (4,154) | (4,381)
Securities available-for-sale |  | 21,210 | 21,104
Debt Securities, Available-for-Sale, Allowance for Credit Loss |  | 0 | 0
US States and Political Subdivisions Debt Securities [Member] |  |  |
Amortized cost | 152,614 |  | 157,247
Gross unrealized gains | 109 |  | 111
Gross unrealized losses |  | (18,884) | (14,462)
Securities available-for-sale |  | 133,839 | 142,896
Debt Securities, Available-for-Sale, Allowance for Credit Loss |  | 0 | 0
Corporate Debt Securities [Member] |  |  |
Amortized cost | 4,000 |  | 7,000
Gross unrealized gains | 0 |  | 0
Gross unrealized losses |  | (41) | (26)
Securities available-for-sale |  | 3,959 | 6,974
Debt Securities, Available-for-Sale, Allowance for Credit Loss |  | 0 | 0
Asset-Backed Securities [Member] |  |  |
Amortized cost | 1,422 |  | 1,673
Gross unrealized gains | 0 |  | 0
Gross unrealized losses |  | (41) | (33)
Securities available-for-sale |  | 1,381 | 1,640
Debt Securities, Available-for-Sale, Allowance for Credit Loss |  | 0 | 0
Other Debt Obligations [Member] |  |  |
Amortized cost | 151 |  | 242
Gross unrealized gains | $ 0 |  | 0
Gross unrealized losses |  | 0 | 0
Securities available-for-sale |  | 151 | 242
Debt Securities, Available-for-Sale, Allowance for Credit Loss |  | $ 0 | $ 0

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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://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
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