Fair Value - Schedule of Carrying Amounts and Estimated Fair Values of Financial Instrument (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Financial Assets:
Securities available for sale	$ 260,173	$ 244,119
Loans held for sale	24,693	26,026
Derivative assets	393	439
Mortgage servicing rights	1,959	1,945
Level 1
Financial Assets:
Cash and due from banks	8,236	6,841
Interest-bearing cash equivalents	77,851	92,004
Financial Liabilities:
Advances by borrowers for taxes and insurance	6,341	6,537
Level 2
Financial Assets:
Securities available for sale	260,173	244,119
Loans held for sale	24,693	26,026
Derivative assets	393	439
Mortgage servicing rights	1,959	1,945
Financial Liabilities:
Deposits	774,211	711,225
Other borrowings	66,393	73,372
Level 3
Financial Assets:
Loans held for investment, net	752,816	737,551
Accrued interest receivable	5,598	5,729
Financial Liabilities:
Accrued interest payable	323	380
Carrying Amount
Financial Assets:
Cash and due from banks	8,236	6,841
Interest-bearing cash equivalents	77,851	92,004
Securities available for sale	260,173	244,119
Loans held for sale	24,693	26,026
Loans held for investment, net	770,533	750,653
Derivative assets	393	439
Mortgage servicing rights	947	1,078
Accrued interest receivable	5,598	5,729
Financial Liabilities:
Deposits	824,808	800,742
Advances by borrowers for taxes and insurance	6,341	6,537
Other borrowings	66,500	73,500
Accrued interest payable	323	380
Fair Value
Financial Assets:
Cash and due from banks	8,236	6,841
Interest-bearing cash equivalents	77,851	92,004
Securities available for sale	260,173	244,119
Loans held for sale	24,693	26,026
Loans held for investment, net	752,816	737,551
Derivative assets	393	439
Mortgage servicing rights	1,959	1,945
Accrued interest receivable	5,598	5,729
Financial Liabilities:
Deposits	774,211	711,225
Advances by borrowers for taxes and insurance	6,341	6,537
Other borrowings	66,393	73,372
Accrued interest payable	$ 323	$ 380