Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.19.1
Document and Entity Information - shares
9 Months Ended
Feb. 28, 2019
Mar. 31, 2019
Document and Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Feb. 28, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Entity Registrant Name CYTODYN INC.  
Trading Symbol CYDY  
Entity Central Index Key 0001175680  
Current Fiscal Year End Date --05-31  
Entity Filer Category Accelerated Filer  
Entity Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   305,490,094
Entity Small Business true