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Fair Value (Details) - USD ($) | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Estimated Fair Value | $ 444,367,000 | $ 406,549,000
U.S. Government sponsored enterprises |  |
Estimated Fair Value | 12,142,000 | 14,267,000
U.S. Government sponsored enterprises | Level 3 |  |
Estimated Fair Value | 0 | 0
U.S. Government sponsored enterprises | Level 2 |  |
Estimated Fair Value | 12,142,000 | 14,267,000
U.S. Government sponsored enterprises | Level 1 |  |
Estimated Fair Value | 0 | 0
Mortgage-backed securities |  |
Estimated Fair Value | 271,899,000 | 217,152,000
Mortgage-backed securities | Level 3 |  |
Estimated Fair Value | 0 | 0
Mortgage-backed securities | Level 2 |  |
Estimated Fair Value | 271,899,000 | 217,152,000
Mortgage-backed securities | Level 1 |  |
Estimated Fair Value | 0 | 0
State and political subdivisions |  |
Estimated Fair Value | 150,549,000 | 167,241,000
State and political subdivisions | Level 3 |  |
Estimated Fair Value | 0 | 0
State and political subdivisions | Level 2 |  |
Estimated Fair Value | 150,549,000 | 167,241,000
State and political subdivisions | Level 1 |  |
Estimated Fair Value | 0 | 0
US Treasury Securities [Member] |  |
Estimated Fair Value | 9,777,000 | 7,889,000
US Treasury Securities [Member] | Level 3 |  |
Estimated Fair Value | 0 | 0
US Treasury Securities [Member] | Level 2 |  |
Estimated Fair Value | 9,777,000 | 7,889,000
US Treasury Securities [Member] | Level 1 |  |
Estimated Fair Value | 0 | 0
Mutual funds held in deferred compensation trust |  |
Mutual Funds Held In Deferred Compensation Trust | 1,218,000 | 1,510,000
Mutual funds held in deferred compensation trust | Level 3 |  |
Mutual Funds Held In Deferred Compensation Trust | 0 | 0
Mutual funds held in deferred compensation trust | Level 2 |  |
Mutual Funds Held In Deferred Compensation Trust | 1,218,000 | 1,510,000
Mutual funds held in deferred compensation trust | Level 1 |  |
Mutual Funds Held In Deferred Compensation Trust | $ 0 | $ 0

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