| Schedule of Investment Securities |
The amortized cost, gross unrealized gains, gross unrealized losses and fair value of investment securities are summarized as follows: | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2026 | | (In thousands) | Amortized
Cost | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | | Fair
Value | | State and political subdivisions | $ | 221,180 | | | $ | 3,221 | | | $ | (10,941) | | | $ | 213,460 | | | Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises | 504,340 | | | 189 | | | (31,115) | | | 473,414 | | | Corporate bonds | 30,767 | | | — | | | (2,143) | | | 28,624 | | | | | | | | | | | Asset backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises | 21,478 | | | — | | | (186) | | | 21,292 | | | Total | $ | 777,765 | | | $ | 3,410 | | | $ | (44,385) | | | $ | 736,790 | |
| | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | (In thousands) | Amortized
Cost | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | | Fair Value | | State and political subdivisions | $ | 247,716 | | | $ | 3,228 | | | $ | (10,733) | | | $ | 240,211 | | | Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises | 503,599 | | | 2,144 | | | (27,047) | | | 478,696 | | | Corporate bonds | 30,895 | | | — | | | (1,999) | | | 28,896 | | | | | | | | | | | Asset backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises | 23,294 | | | — | | | (325) | | | 22,969 | | | Total | $ | 805,504 | | | $ | 5,372 | | | $ | (40,104) | | | $ | 770,772 | |
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| Schedule of Unrealized Loss on Investments |
The fair values of investment securities with unrealized losses are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2026 | | Less than 12 months | | 12 months or more | | Total | | (In thousands) | Estimated
Fair Value | | Unrealized
Losses | | Estimated
Fair Value | | Unrealized
Losses | | Estimated
Fair Value | | Unrealized
Losses | | State and political subdivisions | $ | 5,882 | | | $ | 5 | | | $ | 105,314 | | | $ | 10,936 | | | $ | 111,196 | | | $ | 10,941 | | | Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises | 289,427 | | | 5,319 | | | 136,257 | | | 25,796 | | | 425,684 | | | 31,115 | | | Corporate bonds | — | | | — | | | 28,624 | | | 2,143 | | | 28,624 | | | 2,143 | | | | | | | | | | | | | | | Asset backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises | — | | | — | | | 21,292 | | | 186 | | | 21,292 | | | 186 | | | Total | $ | 295,309 | | | $ | 5,324 | | | $ | 291,487 | | | $ | 39,061 | | | $ | 586,796 | | | $ | 44,385 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | Less than 12 months | | 12 months or more | | Total | | (In thousands) | Estimated
Fair Value | | Unrealized
Losses | | Estimated
Fair Value | | Unrealized
Losses | | Estimated
Fair Value | | Unrealized
Losses | | State and political subdivisions | $ | — | | | $ | — | | | $ | 139,379 | | | $ | 10,733 | | | $ | 139,379 | | | $ | 10,733 | | | Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises | 148,111 | | | 1,733 | | | 155,353 | | | 25,314 | | | 303,464 | | | 27,047 | | | Corporate bonds | — | | | — | | | 28,896 | | | 1,999 | | | 28,896 | | | 1,999 | | | | | | | | | | | | | | | Asset backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises | — | | | — | | | 22,969 | | | 325 | | | 22,969 | | | 325 | | | Total | $ | 148,111 | | | $ | 1,733 | | | $ | 346,597 | | | $ | 38,371 | | | $ | 494,708 | | | $ | 40,104 | |
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