v3.26.1
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2026
May 31, 2026
Sep. 30, 2025
Document And Entity Information      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Mar. 31, 2026    
Document Transition Report false    
Securities Act File Number 001-33387    
Entity Registrant Name GSI TECHNOLOGY INC    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 77-0398779    
Entity Address, Address Line One 1213 Elko Drive    
Entity Address, City or Town Sunnyvale    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 94089    
City Area Code 408    
Local Phone Number 331-8800    
Title of 12(b) Security Common Stock, $0.001 par value    
Trading Symbol GSIT    
Security Exchange Name NASDAQ    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer 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 Common Stock, Shares Outstanding   38,246,573  
Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive proxy statement for its 2026 annual meeting of stockholders are incorporated by reference into Part III hereof.

    
Entity Public Float     $ 96.2
Entity Central Index Key 0001126741    
Current Fiscal Year End Date --03-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2026    
Auditor Name BDO USA, P.C.    
Auditor Firm ID 243    
Auditor Location San Jose, California    
Amendment Flag false