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Securities (Tables) | 12 Months Ended
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Dec. 31, 2023
Securities [Abstract] |
Schedule of Amortized Cost Gross Unrealized Gains and Losses, and Fair Values of Securities |
| December 31, 2023
|  |  |  | Gross |  | Gross |  |  | Allowance |  |  |
| Amortized |  | Unrealized |  | Unrealized |  |  | for Credit |  | Fair
| Cost |  | Gains |  | Losses |  |  | Losses |  | Value
| (In Thousands)
AVAILABLE FOR SALE: |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities | $ | 55,968 |  | $ | 14 |  | $ | (2,382) |  | $ | — |  | $ | 53,600
U.S. Government agencies |  | 18,486 |  |  | — |  |  | (2,490) |  |  | — |  |  | 15,996
States and political subdivisions |  | 151,764 |  |  | — |  |  | (22,285) |  |  | — |  |  | 129,479
Mortgage-backed securities- |  |  |  |  |  |  |  |  |  |  |  |  |  |
government sponsored entities |  | 240,600 |  |  | — |  |  | (33,416) |  |  | — |  |  | 207,184
Total debt securities | $ | 466,818 |  | $ | 14 |  | $ | (60,573) |  | $ | — |  | $ | 406,259
| December 31, 2022
|  |  |  | Gross |  | Gross |  |  |
| Amortized |  | Unrealized |  | Unrealized |  | Fair
| Cost |  | Gains |  | Losses |  | Value
| (In Thousands)
AVAILABLE FOR SALE: |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities | $ | 45,066 |  | $ | — |  | $ | (3,212) |  | $ | 41,854
U.S. Government agencies |  | 21,266 |  |  | — |  |  | (2,943) |  |  | 18,323
States and political subdivisions |  | 157,524 |  |  | 2 |  |  | (29,674) |  |  | 127,852
Mortgage-backed securities- |  |  |  |  |  |  |  |  |  |  |
government sponsored entities |  | 268,400 |  |  | — |  |  | (37,502) |  |  | 230,898
Total debt securities | $ | 492,256 |  | $ | 2 |  | $ | (73,331) |  | $ | 418,927
Schedule of Investments' Gross Unrealized Losses and Fair Value Aggregated by Security Type and Length of Time that Individual Securities have been in a Continuous Unrealized Loss Position |
| December 31, 2023
| Less than 12 Months |  | 12 Months or More |  | Total
| Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
U.S. Treasury securities | $ | — |  | $ | — |  | $ | 40,833 |  | $ | (2,382) |  | $ | 40,833 |  | $ | (2,382)
U.S. Government agencies |  | — |  |  | — |  |  | 15,996 |  |  | (2,490) |  |  | 15,996 |  |  | (2,490)
States and political subdivisions |  | 2,261 |  |  | (12) |  |  | 125,452 |  |  | (22,273) |  |  | 127,713 |  |  | (22,285)
Mortgage-backed securities-government sponsored entities |  | — |  |  | — |  |  | 207,184 |  |  | (33,416) |  |  | 207,184 |  |  | (33,416)
| $ | 2,261 |  | $ | (12) |  | $ | 389,465 |  | $ | (60,561) |  | $ | 391,726 |  | $ | (60,573)
| December 31, 2022
| Less than 12 Months |  | 12 Months or More |  | Total
| Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
U.S. Treasury securities | $ | 25,733 |  | $ | (849) |  | $ | 16,121 |  | $ | (2,363) |  | $ | 41,854 |  | $ | (3,212)
U.S. Government agencies |  | 8,321 |  |  | (885) |  |  | 10,002 |  |  | (2,058) |  |  | 18,323 |  |  | (2,943)
States and political subdivisions |  | 66,680 |  |  | (11,194) |  |  | 57,367 |  |  | (18,480) |  |  | 124,047 |  |  | (29,674)
Mortgage-backed securities-government sponsored entities |  | 102,361 |  |  | (10,639) |  |  | 128,537 |  |  | (26,863) |  |  | 230,898 |  |  | (37,502)
| $ | 203,095 |  | $ | (23,567) |  | $ | 212,027 |  | $ | (49,764) |  | $ | 415,122 |  | $ | (73,331)
Schedule of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity |
| Amortized |  | Fair
| Cost |  | Value
|  | (In Thousands)
Due in one year or less | $ | 28,999 |  | $ | 28,836
Due after one year through five years |  | 42,636 |  |  | 39,606
Due after five years through ten years |  | 70,136 |  |  | 57,770
Due after ten years |  | 84,447 |  |  | 72,863
|  | 226,218 |  |  | 199,075
Mortgage-backed securities - government sponsored entities |  | 240,600 |  |  | 207,184
| $ | 466,818 |  | $ | 406,259

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