{"cik":2093101,"taxonomy":"us-gaap","tag":"ShareBasedCompensation","label":"Share-based Payment Arrangement, Noncash Expense","description":"Amount of noncash expense for share-based payment arrangement.","entityName":"Atrium Therapeutics, Inc.","units":{"USD":[{"start":"2025-01-01","end":"2025-03-31","val":1210000,"accn":"0001193125-26-224243","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-14","frame":"CY2025Q1"},{"start":"2026-01-01","end":"2026-03-31","val":12213000,"accn":"0001193125-26-224243","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-14","frame":"CY2026Q1"}]}}