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Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Estimated Fair Value	$ 394,084	$ 445,394
U.S. Government sponsored enterprises
Estimated Fair Value	11,020	11,539
U.S. Government sponsored enterprises | Level 1
Estimated Fair Value	0	0
U.S. Government sponsored enterprises | Level 2
Estimated Fair Value	11,020	11,539
U.S. Government sponsored enterprises | Level 3
Estimated Fair Value	0	0
Mortgage-backed securities
Estimated Fair Value	269,720	273,838
Mortgage-backed securities | Level 1
Estimated Fair Value	0	0
Mortgage-backed securities | Level 2
Estimated Fair Value	269,720	273,838
Mortgage-backed securities | Level 3
Estimated Fair Value	0	0
State and political subdivisions
Estimated Fair Value	103,450	150,203
State and political subdivisions | Level 1
Estimated Fair Value	0	0
State and political subdivisions | Level 2
Estimated Fair Value	103,450	150,203
State and political subdivisions | Level 3
Estimated Fair Value	0	0
US Treasury Securities [Member]
Estimated Fair Value	9,894	9,814
US Treasury Securities [Member] | Level 1
Estimated Fair Value	0	0
US Treasury Securities [Member] | Level 2
Estimated Fair Value	9,894	9,814
US Treasury Securities [Member] | Level 3
Estimated Fair Value	0	0
Mutual funds held in deferred compensation trust
Mutual Funds Held In Deferred Compensation Trust	1,804	1,327
Mutual funds held in deferred compensation trust | Level 1
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	$ 1,804	$ 1,327

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