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Securities (Tables) | 12 Months Ended
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Dec. 31, 2022
Securities [Abstract] |
Schedule of Amortized Cost Gross Unrealized Gains and Losses, and Fair Values of Securities |
| 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
| December 31, 2021
|  |  |  | Gross |  | Gross |  |  |
| Amortized |  | Unrealized |  | Unrealized |  | Fair
| Cost |  | Gains |  | Losses |  | Value
| (In Thousands)
AVAILABLE FOR SALE: |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities | $ | 19,550 |  | $ | 6 |  | $ | (205) |  | $ | 19,351
U.S. Government agencies |  | 16,251 |  |  | 24 |  |  | (264) |  |  | 16,011
States and political subdivisions |  | 145,107 |  |  | 2,155 |  |  | (1,395) |  |  | 145,867
Mortgage-backed securities- |  |  |  |  |  |  |  |  |  |  |
government sponsored entities |  | 227,712 |  |  | 766 |  |  | (2,925) |  |  | 225,553
Total debt securities | $ | 408,620 |  | $ | 2,951 |  | $ | (4,789) |  | $ | 406,782
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, 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)
| December 31, 2021
| 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 | $ | 18,361 |  | $ | (205) |  | $ | — |  | $ | — |  | $ | 18,361 |  | $ | (205)
U.S. Government agencies |  | 7,912 |  |  | (109) |  |  | 3,843 |  |  | (155) |  |  | 11,755 |  |  | (264)
States and political subdivisions |  | 74,658 |  |  | (1,395) |  |  | — |  |  | — |  |  | 74,658 |  |  | (1,395)
Mortgage-backed securities-government sponsored entities |  | 170,647 |  |  | (2,856) |  |  | 2,919 |  |  | (69) |  |  | 173,566 |  |  | (2,925)
| $ | 271,578 |  | $ | (4,565) |  | $ | 6,762 |  | $ | (224) |  | $ | 278,340 |  | $ | (4,789)
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 | $ | 5,883 |  | $ | 5,821
Due after one year through five years |  | 43,272 |  |  | 40,981
Due after five years through ten years |  | 54,146 |  |  | 44,419
Due after ten years |  | 120,555 |  |  | 96,808
|  | 223,856 |  |  | 188,029
Mortgage-backed securities - government sponsored entities |  | 268,400 |  |  | 230,898
| $ | 492,256 |  | $ | 418,927

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