{"cik":2065708,"taxonomy":"us-gaap","tag":"OtherLiabilitiesNoncurrent","label":"Other Liabilities, Noncurrent","description":"Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.","entityName":"Andersen Group Inc.","units":{"USD":[{"end":"2024-12-31","val":17116000,"accn":"0001193125-26-128949","fy":2025,"fp":"FY","form":"10-K","filed":"2026-03-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3517000,"accn":"0001193125-26-128949","fy":2025,"fp":"FY","form":"10-K","filed":"2026-03-27"},{"end":"2025-12-31","val":3517000,"accn":"0001193125-26-219544","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-12","frame":"CY2025Q4I"},{"end":"2026-03-31","val":3603000,"accn":"0001193125-26-219544","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-12","frame":"CY2026Q1I"}]}}