Loans and Allowance for Credit Losses - Aging analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Aging analysis
Total loans	$ 100,245	$ 96,905
30 to 59 Days Past Due
Aging analysis
Total loans	652	491
60 to 89 Days Past Due
Aging analysis
Total loans	3	219
Greater Than 90 Days
Aging analysis
Total loans	156	317
Total Past Due
Aging analysis
Total loans	811	1,027
Current
Aging analysis
Total loans	99,434	95,878
Mortgage loans on real estate
Aging analysis
Total loans	91,329	88,770
Mortgage loans on real estate | 30 to 59 Days Past Due
Aging analysis
Total loans	621	445
Mortgage loans on real estate | 60 to 89 Days Past Due
Aging analysis
Total loans		219
Mortgage loans on real estate | Greater Than 90 Days
Aging analysis
Total loans	156	317
Mortgage loans on real estate | Total Past Due
Aging analysis
Total loans	777	981
Mortgage loans on real estate | Current
Aging analysis
Total loans	90,552	87,789
Mortgage loans on real estate | Residential 1-4 family
Aging analysis
Total loans	65,146	65,721
Mortgage loans on real estate | Residential 1-4 family | 30 to 59 Days Past Due
Aging analysis
Total loans	372	445
Mortgage loans on real estate | Residential 1-4 family | 60 to 89 Days Past Due
Aging analysis
Total loans		219
Mortgage loans on real estate | Residential 1-4 family | Greater Than 90 Days
Aging analysis
Total loans	156	317
Mortgage loans on real estate | Residential 1-4 family | Total Past Due
Aging analysis
Total loans	528	981
Mortgage loans on real estate | Residential 1-4 family | Current
Aging analysis
Total loans	64,618	64,740
Mortgage loans on real estate | Commercial
Aging analysis
Total loans	24,735	21,412
Mortgage loans on real estate | Commercial | 30 to 59 Days Past Due
Aging analysis
Total loans	249
Mortgage loans on real estate | Commercial | Total Past Due
Aging analysis
Total loans	249
Mortgage loans on real estate | Commercial | Current
Aging analysis
Total loans	24,486	21,412
Mortgage loans on real estate | Construction and Land Development
Aging analysis
Total loans	1,448	1,637
Mortgage loans on real estate | Construction and Land Development | Current
Aging analysis
Total loans	1,448	1,637
Commercial loans
Aging analysis
Total loans	5,099	4,656
Commercial loans | Current
Aging analysis
Total loans	5,099	4,656
Consumer
Aging analysis
Total loans	3,817	3,479
Consumer | 30 to 59 Days Past Due
Aging analysis
Total loans	31	46
Consumer | 60 to 89 Days Past Due
Aging analysis
Total loans	3
Consumer | Total Past Due
Aging analysis
Total loans	34	46
Consumer | Current
Aging analysis
Total loans	$ 3,783	$ 3,433