Regulatory Capital Matters - Schedule of actual and required capital amounts for the bank and ratios (Details) $ in Thousands	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Tier I capital (to average assets), Amount [Abstract]
Actual Amount	$ 72,520	$ 69,739
To be well Capitalized Under Prompt Corrective Action Regulations (CBLR Framework) Amount	$ 34,303	$ 31,476
Tier I capital (to average assets), Ratio [Abstract]
Actual Ratio	0.2097	0.1883
To be well Capitalized Under Prompt Corrective Action Regulations (CBLR Framework) Ratio	0.0900	0.0850