Quarterly report pursuant to Section 13 or 15(d)

Cover Page

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Cover Page - shares
6 Months Ended
Jun. 29, 2024
Aug. 15, 2024
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 29, 2024  
Document Transition Report false  
Entity File Number 0-19621  
Entity Registrant Name ALT5 Sigma Corporation  
Entity Incorporation, State or Country Code NV  
Entity Tax Identification Number 41-1454591  
Entity Address, Address Line One 325 E. Warm Springs Road  
Entity Address, Address Line Two Suite 102  
Entity Address, City or Town Las Vegas  
Entity Address, State or Province NV  
Entity Address, Postal Zip Code 89119  
City Area Code 702  
Local Phone Number 997-5968  
Entity Information, Former Legal or Registered Name JanOne Inc.  
Title of 12(b) Security Common Stock, $0.001 par value per share  
Trading Symbol ALTS  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   12,769,015
Entity Central Index Key 0000862861  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2024  
Document Fiscal Period Focus Q2  
Amendment Flag false