Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

Document And Entity Information - USD ($)
12 Months Ended
Mar. 27, 2021
Jun. 22, 2021
Sep. 26, 2020
Document Information [Line Items]      
Entity Registrant Name GIGA TRONICS INC    
Entity Central Index Key 0000719274    
Trading Symbol giga    
Current Fiscal Year End Date --03-27    
Entity Filer Category Non-accelerated Filer    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No    
Entity Emerging Growth Company false    
Entity Small Business true    
Entity Interactive Data Current Yes    
Entity Common Stock, Shares Outstanding (in shares)   2,735,010  
Entity Public Float     $ 9,133,271
Entity Shell Company false    
Document Type 10-K    
Document Period End Date Mar. 27, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false    
Title of 12(b) Security Common Stock, No par value; Preferred Share Purchase Rights