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Document And Entity Information
 3 Months Ended
Mar. 31, 2025
Document Information Line Items  
Entity Central Index Key 0001787518
Amendment Description Amendment No. 3
Document Type S-1/A
Entity Registrant Name Nukkleus Inc.
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