Shareholders' Equity - Actual Capital Amounts and Ratios (Details) $ in Thousands	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Company [Member]
Shareholders' Equity [Abstract]
Total capital to risk-weighted assets, actual amount	$ 242,263	$ 227,229
Total capital to risk-weighted assets, actual ratio	0.1505	0.1521
Total capital to risk-weighted assets, minimum capital requirements amount	$ 128,767	$ 119,489
Total capital to risk-weighted assets, minimum capital requirements ratio	0.08	0.08
Total capital to risk-weighted assets, capital conservation buffer amount	$ 169,006	$ 156,830
Total capital to risk-weighted assets, capital conservation buffer ratio	0.105	0.105
Tier I capital to risk-weighted assets, actual amount	$ 223,577	$ 208,847
Tier I capital to risk-weighted assets, actual ratio	0.1389	0.1398
Tier I capital to risk-weighted assets, minimum capital requirements amount	$ 96,575	$ 89,617
Tier I capital to risk-weighted assets, minimum capital requirements ratio	0.06	0.06
Tier I capital to risk-weighted assets, minimum capital conservation buffer amount	$ 136,815	$ 126,957
Tier I capital to risk-weighted assets, minimum capital conservation buffer ratio	0.085	0.085
Common equity tier I capital to risk-weighted assets, actual amount	$ 223,577	$ 208,847
Common equity tier I capital to risk-weighted assets, actual ratio	0.1389	0.1398
Common equity tier I capital to risk-weighted assets, minimum capital requirements amount	$ 72,431	$ 67,213
Common equity tier I capital to risk-weighted assets, minimum capital requirements ratio	0.045	0.045
Common equity tier I capital to risk-weighted assets, capital conservation buffer amount	$ 112,671	$ 104,553
Common equity tier I capital to risk-weighted assets, capital conservation buffer ratio	0.07	0.07
Tier I capital to average assets, actual amount	$ 223,577	$ 208,847
Tier I capital to average assets, actual ratio	0.1249	0.1219
Tier I capital to average assets, minimum capital requirements amount	$ 71,575	$ 68,558
Tier I capital to average assets, minimum capital requirements ratio	0.04	0.04
Bank [Member]
Shareholders' Equity [Abstract]
Total capital to risk-weighted assets, actual amount	$ 242,222	$ 227,189
Total capital to risk-weighted assets, actual ratio	0.1506	0.1522
Total capital to risk-weighted assets, minimum capital requirements amount	$ 128,686	$ 119,408
Total capital to risk-weighted assets, minimum capital requirements ratio	0.08	0.08
Total capital to risk-weighted assets, capital conservation buffer amount	$ 168,900	$ 156,723
Total capital to risk-weighted assets, capital conservation buffer ratio	0.105	0.105
Total capital to risk-weighted assets, minimum to be well capitalized under prompt corrective action amount	$ 160,857	$ 149,260
Total capital to risk-weighted assets, minimum to be well capitalized under prompt corrective action ratio	0.10	0.10
Tier I capital to risk-weighted assets, actual amount	$ 223,536	$ 208,807
Tier I capital to risk-weighted assets, actual ratio	0.139	0.1399
Tier I capital to risk-weighted assets, minimum capital requirements amount	$ 96,514	$ 89,556
Tier I capital to risk-weighted assets, minimum capital requirements ratio	0.06	0.06
Tier I capital to risk-weighted assets, minimum capital conservation buffer amount	$ 136,729	$ 126,871
Tier I capital to risk-weighted assets, minimum capital conservation buffer ratio	0.085	0.085
Tier I capital to risk-weighted assets, minimum to be well capitalized under prompt corrective action amount	$ 128,686	$ 119,408
Tier I capital to risk-weighted assets, minimum to be well capitalized under prompt corrective action ratio	0.08	0.08
Common equity tier I capital to risk-weighted assets, actual amount	$ 223,536	$ 208,807
Common equity tier I capital to risk-weighted assets, actual ratio	0.139	0.1399
Common equity tier I capital to risk-weighted assets, minimum capital requirements amount	$ 72,386	$ 67,167
Common equity tier I capital to risk-weighted assets, minimum capital requirements ratio	0.045	0.045
Common equity tier I capital to risk-weighted assets, capital conservation buffer amount	$ 112,600	$ 104,482
Common equity tier I capital to risk-weighted assets, capital conservation buffer ratio	0.07	0.07
Common equity tier I capital to risk-weighted assets, minimum to be well capitalized under prompt corrective action amount	$ 104,557	$ 97,019
Common equity tier I capital to risk-weighted assets, minimum to be well capitalized under prompt corrective action ratio	0.065	0.065
Tier I capital to average assets, actual amount	$ 223,536	$ 208,807
Tier I capital to average assets, actual ratio	0.1249	0.1218
Tier I capital to average assets, minimum capital requirements amount	$ 71,575	$ 68,558
Tier I capital to average assets, minimum capital requirements ratio	0.04	0.04
Tier I capital to average assets, minimum to be well capitalized under prompt corrective action amount	$ 89,469	$ 85,698
Tier I capital to average assets, minimum to be well capitalized under prompt corrective action ratio	0.05	0.05

Bank7 Corp. 10-Q