Document and Entity Information - shares	3 Months Ended
	Dec. 31, 2019	Feb. 14, 2020
Document and Entity Information [Abstract]
Entity Registrant Name	Nukkleus Inc.
Entity Central Index Key	0001592782
Document Type	10-Q
Document Period End Date	Dec. 31, 2019
Amendment Flag	false
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Incorporation, State or Country Code	DE
Entity File Number	000-55922
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Filer Category	Non-accelerated Filer
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		230,485,100
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2020