v3.26.1
Document And Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 27, 2025
Mar. 13, 2026
Jun. 27, 2025
Document And Entity Information [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 27, 2025    
Current Fiscal Year End Date --12-27    
Document Transition Report false    
Entity File Number 001-33170    
Entity Registrant Name NETLIST INC    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 95-4812784    
Entity Address, Address Line One 111 Academy    
Entity Address, Address Line Two Suite 100    
Entity Address, City or Town Irvine    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92617    
City Area Code 949    
Local Phone Number 435-0025    
Title of 12(g) Security Common Stock, par value $0.001 per share    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 189.2
Entity Common Stock, Shares Outstanding   316,515,344  
Auditor Firm ID 324    
Auditor Name Macias Gini & O’Connell LLP    
Auditor Location Irvine, California    
Entity Central Index Key 0001282631    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false