Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

Document And Entity Information - USD ($)
$ in Millions
12 Months Ended
Mar. 27, 2016
May. 25, 2016
Sep. 27, 2015
Entity Registrant Name EXAR CORPORATION    
Entity Central Index Key 0000753568    
Trading Symbol exar    
Current Fiscal Year End Date --03-27    
Entity Filer Category Accelerated Filer    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No    
Entity Common Stock, Shares Outstanding (in shares)   48,620,468  
Entity Public Float     $ 131.1
Document Type 10-K    
Document Period End Date Mar. 27, 2016    
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus FY    
Amendment Flag false