{"cik":2098712,"taxonomy":"us-gaap","tag":"NetCashProvidedByUsedInOperatingActivities","label":"Net Cash Provided by (Used in) Operating Activities","description":"Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","entityName":"GigCapital9 Corp.","units":{"USD":[{"start":"2025-10-29","end":"2025-12-31","val":-4191,"accn":"0001193125-26-134550","fy":2025,"fp":"FY","form":"10-K","filed":"2026-03-31","frame":"CY2025Q4"}]}}