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Document And Entity Information
 9 Months Ended
Sep. 28, 2024
Document Information Line Items  
Entity Central Index Key 0001605888
Amendment Description Amendment No. 1
Document Type S-4/A
Entity Registrant Name ATLANTIC INTERNATIONAL CORP.
Entity Incorporation, State or Country Code DE
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Entity Ex Transition Period false
Amendment Flag true