Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Mar. 31, 2020
Jun. 26, 2020
Sep. 30, 2019
Document And Entity Information      
Entity Registrant Name VistaGen Therapeutics, Inc.    
Entity Central Index Key 0001411685    
Document Type 10-K    
Document Period End Date Mar. 31, 2020    
Amendment Flag false    
Current Fiscal Year End Date --03-31    
Entity a Well-known Seasoned Issuer No    
Entity a Voluntary Filer No    
Entity's Reporting Status Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Emerging Growth Company false    
Entity Small Business true    
Entity Shell Company false    
Entity Interactive Data Current Yes    
Entity Incorporation, State or Country Code NV    
Entity File Number 001-37761    
Entity Public Float     $ 45,352,358
Entity Common Stock, Shares Outstanding   55,773,682  
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2020