XML 37 R25.htm IDEA: XBRL DOCUMENT
v3.24.3

Note 4 - Investment Securities (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2024
Notes Tables |
Debt Securities, Available-for-Sale [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Allowance |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | for |
|  |  |  |  |  | Gross |  |  | Gross |  |  |  |  |  |  | Investment |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |  |  | Credit |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |  |  | Losses |
|  | (dollars in thousands) |
September 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment securities available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal agency obligations |  | $ | 100,284 |  |  | $ | 596 |  |  | $ | (10,070 | ) |  | $ | 90,810 |  |  | $ | - |
Residential mortgage pass-through securities |  |  | 441,794 |  |  |  | 937 |  |  |  | (43,496 | ) |  |  | 399,235 |  |  |  | - |
Commercial mortgage pass-through securities |  |  | 25,053 |  |  |  | - |  |  |  | (2,768 | ) |  |  | 22,285 |  |  |  | - |
Obligations of U.S. states and political subdivisions |  |  | 143,547 |  |  |  | 422 |  |  |  | (15,662 | ) |  |  | 128,307 |  |  |  | - |
Corporate bonds and notes |  |  | 5,000 |  |  |  | 11 |  |  |  | - |  |  |  | 5,011 |  |  |  | - |
Asset-backed securities |  |  | 917 |  |  |  | - |  |  |  | (11 | ) |  |  | 906 |  |  |  | - |
Other securities |  |  | 159 |  |  |  | - |  |  |  | - |  |  |  | 159 |  |  |  | - |
Total investment securities available-for-sale |  | $ | 716,754 |  |  | $ | 1,966 |  |  | $ | (72,007 | ) |  | $ | 646,713 |  |  | $ | - |
December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment securities available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal agency obligations |  | $ | 55,898 |  |  | $ | 189 |  |  | $ | (10,761 | ) |  | $ | 45,326 |  |  | $ | - |
Residential mortgage pass-through securities |  |  | 462,004 |  |  |  | 620 |  |  |  | (51,433 | ) |  |  | 411,191 |  |  |  | - |
Commercial mortgage pass-through securities |  |  | 25,240 |  |  |  | - |  |  |  | (3,676 | ) |  |  | 21,564 |  |  |  | - |
Obligations of U.S. states and political subdivisions |  |  | 148,795 |  |  |  | 415 |  |  |  | (16,505 | ) |  |  | 132,705 |  |  |  | - |
Corporate bonds and notes |  |  | 5,000 |  |  |  | - |  |  |  | (27 | ) |  |  | 4,973 |  |  |  | - |
Asset-backed securities |  |  | 1,260 |  |  |  | - |  |  |  | (22 | ) |  |  | 1,238 |  |  |  | - |
Other securities |  |  | 165 |  |  |  | - |  |  |  | - |  |  |  | 165 |  |  |  | - |
Total investment securities available-for-sale |  | $ | 698,362 |  |  | $ | 1,224 |  |  | $ | (82,424 | ) |  | $ | 617,162 |  |  | $ | - |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | September 30, 2024 |
|  | Amortized |  |  | Fair |
|  | Cost |  |  | Value |
|  | (dollars in thousands) |
Investment securities available-for-sale: |  |  |  |  |  |  |  |
Due in one year or less |  | $ | 1,284 |  |  | $ | 1,285 |
Due after one year through five years |  |  | 8,048 |  |  |  | 8,092 |
Due after five years through ten years |  |  | 10,446 |  |  |  | 9,522 |
Due after ten years |  |  | 229,970 |  |  |  | 206,135 |
Residential mortgage pass-through securities |  |  | 441,794 |  |  |  | 399,235 |
Commercial mortgage pass-through securities |  |  | 25,053 |  |  |  | 22,285 |
Other securities |  |  | 159 |  |  |  | 159 |
Total investment securities available-for-sale |  | $ | 716,754 |  |  | $ | 646,713 |
Unrealized Gain (Loss) on Investments [Table Text Block] |
|  | September 30, 2024 |
|  | Total |  |  | Less than 12 Months |  |  | 12 Months or Longer |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
|  | (dollars in thousands) |
Investment securities available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal agency obligations |  | $ | 37,857 |  |  | $ | (10,070 | ) |  | $ | - |  |  | $ | - |  |  | $ | 37,857 |  |  | $ | (10,070 | )
Residential mortgage pass-through securities |  |  | 369,309 |  |  |  | (43,496 | ) |  |  | 5,786 |  |  |  | (110 | ) |  |  | 363,523 |  |  |  | (43,386 | )
Commercial mortgage pass-through securities |  |  | 22,285 |  |  |  | (2,768 | ) |  |  | - |  |  |  | - |  |  |  | 22,285 |  |  |  | (2,768 | )
Obligations of U.S. states and political subdivisions |  |  | 104,497 |  |  |  | (15,662 | ) |  |  | 7,682 |  |  |  | (42 | ) |  |  | 96,815 |  |  |  | (15,620 | )
Corporate bonds and notes |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Asset-backed securities |  |  | 906 |  |  |  | (11 | ) |  |  | - |  |  |  | - |  |  |  | 906 |  |  |  | (11 | )
Total temporarily impaired securities |  | $ | 534,854 |  |  | $ | (72,007 | ) |  | $ | 13,468 |  |  | $ | (152 | ) |  | $ | 521,386 |  |  | $ | (71,855 | )
|  | December 31, 2023 |
|  | Total |  |  | Less than 12 Months |  |  | 12 Months or Longer |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
|  | (dollars in thousands) |
Investment securities available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal agency obligations |  | $ | 40,779 |  |  | $ | (10,761 | ) |  | $ | 1,689 |  |  | $ | (65 | ) |  | $ | 39,090 |  |  | $ | (10,696 | )
Residential mortgage pass-through securities |  |  | 382,042 |  |  |  | (51,433 | ) |  |  | 4,138 |  |  |  | (51 | ) |  |  | 377,904 |  |  |  | (51,382 | )
Commercial mortgage pass-through securities |  |  | 21,565 |  |  |  | (3,676 | ) |  |  | - |  |  |  | - |  |  |  | 21,565 |  |  |  | (3,676 | )
Obligations of U.S. states and political subdivisions |  |  | 101,189 |  |  |  | (16,505 | ) |  |  | 1,340 |  |  |  | (7 | ) |  |  | 99,849 |  |  |  | (16,498 | )
Corporate bonds and notes |  |  | 4,973 |  |  |  | (27 | ) |  |  | 2,993 |  |  |  | (7 | ) |  |  | 1,980 |  |  |  | (20 | )
Asset-backed securities |  |  | 1,238 |  |  |  | (22 | ) |  |  | - |  |  |  | - |  |  |  | 1,238 |  |  |  | (22 | )
Total temporarily impaired securities |  | $ | 551,786 |  |  | $ | (82,424 | ) |  | $ | 10,160 |  |  | $ | (130 | ) |  | $ | 541,626 |  |  | $ | (82,294 | )

X
- Definition Tabular disclosure of 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/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -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 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aaa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of unrealized gains and losses on investments. + References No definition available. + Details
Name: | us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration