{
 "ok": true,
 "cik": "1710482",
 "ticker": "JMSB",
 "name": "John Marshall Bancorp, Inc.",
 "filings": [
  {
   "form": "8-K",
   "filed": "2026-09-08",
   "items": [
    "1.01 Entry into a Material Definitive Agreement",
    "5.02 Departure or Election of Directors; Appointment of Officers",
    "7.01 Regulation FD Disclosure",
    "9.01 Financial Statements and Exhibits"
   ],
   "url": "https://www.sec.gov/Archives/edgar/data/1710482/000155278126000472/0001552781-26-000472-index.htm"
  },
  {
   "form": "8-K",
   "filed": "2026-08-19",
   "items": [
    "8.01 Other Events",
    "9.01 Financial Statements and Exhibits"
   ],
   "url": "https://www.sec.gov/Archives/edgar/data/1710482/000110465926098594/0001104659-26-098594-index.htm"
  },
  {
   "form": "10-Q",
   "filed": "2026-08-07",
   "items": [],
   "url": "https://www.sec.gov/Archives/edgar/data/1710482/000110465926092388/0001104659-26-092388-index.htm"
  },
  {
   "form": "8-K",
   "filed": "2026-07-28",
   "items": [
    "7.01 Regulation FD Disclosure",
    "9.01 Financial Statements and Exhibits"
   ],
   "url": "https://www.sec.gov/Archives/edgar/data/1710482/000110465926087344/0001104659-26-087344-index.htm"
  },
  {
   "form": "8-K",
   "filed": "2026-07-22",
   "items": [
    "8.01 Other Events",
    "9.01 Financial Statements and Exhibits"
   ],
   "url": "https://www.sec.gov/Archives/edgar/data/1710482/000110465926085645/0001104659-26-085645-index.htm"
  },
  {
   "form": "8-K",
   "filed": "2026-07-22",
   "items": [
    "2.02 Results of Operations and Financial Condition",
    "9.01 Financial Statements and Exhibits"
   ],
   "url": "https://www.sec.gov/Archives/edgar/data/1710482/000110465926085643/0001104659-26-085643-index.htm"
  }
 ],
 "events12m": 13,
 "sources": {
  "facts": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001710482.json",
  "filings": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1710482"
 },
 "license": "Figures as filed with the SEC. Card text CC BY 4.0, POPS4.",
 "notAdvice": "Reporting, not investment advice. No price targets, no buy or sell views.",
 "edgar": "🫧 Edgar looked up John Marshall Bancorp, Inc. ($JMSB). Last filing: 8-K (1.01 Entry into a Material Definitive Agreement), 2026-09-08. 13 event filings (8-K) in the past twelve months.",
 "auditor": {
  "changes": [],
  "nonReliance": [],
  "restatedSince": null
 },
 "edgarette": "🔖 The filings carry no annual revenue line Edgarette can read (common for banks and insurers, which report income differently). Nothing weighed, nothing guessed."
}