Equity and Regulatory Matters - Schedule of Capital Amounts and Ratios (Details) $ in Thousands	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Common Equity Tier 1 capital (to risk-weighted assets)
Actual, Amount	$ 19,238	$ 16,464
Actual, Ratio	0.122	0.112
For Capital Adequacy Purpose, Amount (Minimum)	$ 7,084	$ 6,634
For Capital Adequacy Purpose, Ratio (Minimum)	0.045	0.045
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 10,233	$ 9,582
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.065	0.065
Tier 1 capital (to risk-weighted assets)
Actual, Amount	$ 19,238	$ 16,464
Actual, Ratio	0.122	0.112
For Capital Adequacy Purpose, Amount (Minimum)	$ 9,446	$ 8,845
For Capital Adequacy Purpose, Ratio (Minimum)	0.06	0.06
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 12,595	$ 11,794
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.08	0.08
Total capital (to risk-weighted assets)
Actual, Amount	$ 20,446	$ 17,521
Actual, Ratio	0.13	0.119
For Capital Adequacy Purpose, Amount (Minimum)	$ 12,595	$ 11,794
For Capital Adequacy Purpose, Ratio (Minimum)	0.08	0.08
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 15,743	$ 14,742
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.10	0.10
Tier 1 capital (to average assets)
Actual, Amount	$ 19,238	$ 16,464
Actual, Ratio	0.072	0.063
For Capital Adequacy Purpose, Amount (Minimum)	$ 10,738	$ 10,386
For Capital Adequacy Purpose, Ratio (Minimum)	0.04	0.04
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 13,422	$ 12,982
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.05	0.05