Regulatory Capital Requirements - Schedule of Bank Actual and Required Capital Amounts and Ratios (Details) $ in Thousands	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Total capital
Actual	$ 53,574	$ 48,810
For capital adequacy purposes	31,505	24,624
To be well capitalized	39,382	30,780
Tier 1 capital
Actual	48,750	44,958
For capital adequacy purposes	23,629	18,468
To be well capitalized	31,505	24,624
Common equity
Actual	48,750	44,958
For capital adequacy purposes	17,722	18,468
To be well capitalized	25,598	24,624
Tier 1 capital
Actual	48,750	44,958
For capital adequacy purposes	17,427	12,375
To be well capitalized	$ 21,784	$ 15,469
Ratios
Actual	13.60	15.86
For capital adequacy purposes	8.00	8.00
To be well capitalized	10.00	10.00
Actual	12.38	14.61
For capital adequacy purposes	6.00	6.00
To be well capitalized	8.00	8.00
Actual	12.38	14.61
For capital adequacy purposes	4.50	4.50
To be well capitalized	6.50	6.50
Banking Regulation, Leverage Ratio [Abstract]
Actual	12.52	12.84
For capital adequacy purposes	4.00	4.00
To be well capitalized	5.00	5.00