Fair Value - Schedule of Carrying Amounts and Estimated Fair Values of Financial Instrument (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financial Assets:
Securities available for sale	$ 250,998	$ 244,119
Loans held for sale	20,860	26,026
Derivative assets	540	439
Mortgage servicing rights	1,944	1,945
Level 1
Financial Assets:
Cash and due from banks	7,359	6,841
Interest-bearing cash equivalents	91,216	92,004
Financial Liabilities:
Advances by borrowers for taxes and insurance	5,664	6,537
Level 2
Financial Assets:
Securities available for sale	250,998	244,119
Loans held for sale	20,860	26,026
Derivative assets	540	439
Mortgage servicing rights	1,944	1,945
Financial Liabilities:
Deposits	743,223	711,225
Other borrowings	61,417	73,372
Level 3
Financial Assets:
Loans held for investment, net	755,698	737,551
Accrued interest receivable	5,563	5,729
Financial Liabilities:
Accrued interest payable	359	380
Carrying Amount
Financial Assets:
Cash and due from banks	7,359	6,841
Interest-bearing cash equivalents	91,216	92,004
Securities available for sale	250,998	244,119
Loans held for sale	20,860	26,026
Loans held for investment, net	764,390	750,653
Derivative assets	540	439
Mortgage servicing rights	1,012	1,078
Accrued interest receivable	5,563	5,729
Financial Liabilities:
Deposits	823,445	800,742
Advances by borrowers for taxes and insurance	5,664	6,537
Other borrowings	61,500	73,500
Accrued interest payable	359	380
Fair Value
Financial Assets:
Cash and due from banks	7,359	6,841
Interest-bearing cash equivalents	91,216	92,004
Securities available for sale	250,998	244,119
Loans held for sale	20,860	26,026
Loans held for investment, net	755,698	737,551
Derivative assets	540	439
Mortgage servicing rights	1,944	1,945
Accrued interest receivable	5,563	5,729
Financial Liabilities:
Deposits	743,223	711,225
Advances by borrowers for taxes and insurance	5,664	6,537
Other borrowings	61,417	73,372
Accrued interest payable	$ 359	$ 380