{"cik":2137360,"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":"YOUMI INC.","units":{"USD/shares":[{"start":"2026-05-01","end":"2026-07-31","val":-0.01,"accn":"0001520138-26-000397","fy":null,"fp":null,"form":"S-1/A","filed":"2026-09-28","frame":"CY2026Q2"}]}}