Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

Document And Entity Information - shares
6 Months Ended
Sep. 27, 2015
Nov. 03, 2015
Document and Entity Information [Abstract]    
Entity Registrant Name Exar Corporation  
Trading Symbol exar  
Document Type 10-Q  
Current Fiscal Year End Date --03-27  
Entity Common Stock, Shares Outstanding   48,415,278
Amendment Flag false  
Entity Central Index Key 0000753568  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Filer Category Accelerated Filer  
Entity Well-known Seasoned Issuer No  
Document Period End Date Sep. 27, 2015  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q2