{"cik":1970743,"taxonomy":"us-gaap","tag":"EarningsPerShareBasic","label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","entityName":"RMX INDUSTRIES, INC.","units":{"USD/shares":[{"start":"2025-01-01","end":"2025-03-31","val":-0.36,"accn":"0001213900-26-058772","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-15","frame":"CY2025Q1"},{"start":"2026-01-01","end":"2026-03-31","val":-0.25,"accn":"0001213900-26-058772","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-15","frame":"CY2026Q1"}]}}