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Loans and Allowance for Credit Losses - Non-accruing loans (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total nonaccruing loans	$ 3,573	$ 11,748
Land development
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total nonaccruing loans	464	384
Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total nonaccruing loans	950	722
Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total nonaccruing loans	1,681
Commercial real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total nonaccruing loans	77	10,552
Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total nonaccruing loans	245	31
Industrial revenue bonds
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total nonaccruing loans	139
Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total nonaccruing loans		8
Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total nonaccruing loans	$ 17	42
Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total nonaccruing loans		$ 9

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