Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.6.0.2
Document and Entity Information - shares
6 Months Ended
Nov. 30, 2016
Dec. 31, 2016
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Nov. 30, 2016  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q2  
Trading Symbol CYDY  
Entity Registrant Name CYTODYN INC.  
Entity Central Index Key 0001175680  
Current Fiscal Year End Date --05-31  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   142,221,981