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v3.25.1

AFS Securities (AFS securities with gross unrealized losses) (Details) $ in Thousands | Mar. 31, 2025 USD ($) Securities | Dec. 31, 2024 USD ($) Securities
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Gross Unrealized Losses, Less Than Twelve Months | $ 364 | $ 671
Fair Value, Less Than Twelve Months | 32,774 | 29,199
Gross Unrealized Losses, Twelve Months or More | 21,275 | 25,825
Fair Value, Twelve Months or More | 431,346 | 443,611
Total Unrealized Losses | $ 21,639 | $ 26,496
Number of Securities in an unrealized loss position, Less Than Twelve Months, Fair Value | Securities | 95 | 175
Number of Securities in an unrealized loss position, Twelve Months or More, Fair Value | Securities | 211 | 178
Number of Securities in an unrealized loss position, Total Unrealized Losses | Securities | 306 | 353
US Treasury Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Gross Unrealized Losses, Less Than Twelve Months | $ 0 | $ 0
Fair Value, Less Than Twelve Months | 0 | 0
Gross Unrealized Losses, Twelve Months or More | 7,918 | 10,236
Fair Value, Twelve Months or More | 212,783 | 220,571
Total Unrealized Losses | 7,918 | 10,236
States and political subdivisions [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Gross Unrealized Losses, Less Than Twelve Months | 176 | 486
Fair Value, Less Than Twelve Months | 15,510 | 23,553
Gross Unrealized Losses, Twelve Months or More | 4,543 | 4,090
Fair Value, Twelve Months or More | 40,418 | 36,796
Total Unrealized Losses | 4,719 | 4,576
Auction Rate Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Gross Unrealized Losses, Less Than Twelve Months | 0 | 0
Fair Value, Less Than Twelve Months | 0 | 0
Gross Unrealized Losses, Twelve Months or More | 371 | 156
Fair Value, Twelve Months or More | 2,829 | 3,044
Total Unrealized Losses | 371 | 156
Mortgage-backed securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Gross Unrealized Losses, Less Than Twelve Months | 0 | 0
Fair Value, Less Than Twelve Months | 0 | 0
Gross Unrealized Losses, Twelve Months or More | 1,717 | 2,182
Fair Value, Twelve Months or More | 25,828 | 26,886
Total Unrealized Losses | 1,717 | 2,182
Collateralized mortgage obligations [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Gross Unrealized Losses, Less Than Twelve Months | 103 | 185
Fair Value, Less Than Twelve Months | 15,649 | 5,646
Gross Unrealized Losses, Twelve Months or More | 5,961 | 8,297
Fair Value, Twelve Months or More | 143,803 | 149,028
Total Unrealized Losses | 6,064 | 8,482
Corporate Debt Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Gross Unrealized Losses, Less Than Twelve Months | 85 | 0
Fair Value, Less Than Twelve Months | 1,615 | 0
Gross Unrealized Losses, Twelve Months or More | 765 | 864
Fair Value, Twelve Months or More | 5,685 | 7,286
Total Unrealized Losses | $ 850 | $ 864

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