Capital and Regulatory Matters (Details) $ in Thousands		Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Actual [Abstract]
Community Bank Leverage Ratio, Amount	[1]	$ 98,590
Community Bank Leverage Ratio, Ratio	[1]	0.0932
Tier 1 (Leverage), Amount			$ 46,565
Tier 1 (Leverage), Ratio			0.0954
Common Equity Tier 1, Amount			$ 46,565
Common Equity Tier 1, Ratio			0.1895
Tier 1, Amount			$ 46,565
Tier 1, Ratio			0.1895
Total Capital, Amount			$ 49,802
Total Capital, Ratio			0.2020
Minimum Capital Requirements [Abstract]
Tier 1 (Leverage), Amount			$ 19,530
Tier 1 (Leverage), Ratio			0.0400
Common Equity Tier 1, Amount			$ 11,059
Common Equity Tier 1, Ratio			0.0450
Tier 1, Amount			$ 14,746
Tier 1, Ratio			0.0600
Total Capital, Amount			$ 19,661
Total Capital, Ratio			0.0800
Minimum Required To Be Well Capitalized Under Prompt Corrective Action Provisions [Abstract]
Community Bank Leverage Ratio, Amount	[1]	$ 89,871
Community Bank Leverage Ratio, Ratio	[1]	0.0850
Tier 1 (Leverage), Amount			$ 24,413
Tier 1 (Leverage), Ratio			0.0500
Common Equity Tier 1, Amount			$ 15,975
Common Equity Tier 1, Ratio			0.0650
Tier 1, Amount			$ 19,661
Tier 1, Ratio			0.0800
Total Capital, Amount			$ 24,577
Total Capital, Ratio			0.1000

[1] At the Merger on April 1, 2021, the Company’s former subsidiary, Broadway Federal Bank, f.s.b., was merged into City First Bank of D.C, N. A., with City First Bank of D.C, N.A. as the surviving entity and the resultant bank being named City First Bank, National Association, which had elected to adopt Community Bank Leverage Ratio option on April 1, 2020 as reflected in its june 30, 2020 Call Report.