v3.26.3
Document and Entity Information
 6 Months Ended
Jun. 30, 2026
Document Information [Line Items]  
Document Type S-1
Amendment Flag false
Entity Registrant Name Arxis, Inc.
Entity Central Index Key 0002093536
Entity Incorporation, State or Country Code DE
Entity Primary Sic Number 3728
Entity Tax Identification Number 39-5113483
Entity Address, Address Line One 1332 Blue Hills Avenue
Entity Address, City or Town Bloomfield
Entity Address, State or Province CT
Entity Address, Postal Zip Code 06002
City Area Code 860
Local Phone Number 243-7100
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Business Contact [Member]  
Document Information [Line Items]  
Contact Personnel Name Kevin Perhamus