Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

Document And Entity Information - shares
6 Months Ended
Sep. 30, 2021
Nov. 09, 2021
Document Information [Line Items]    
Entity Central Index Key 0001411685  
Entity Registrant Name VistaGen Therapeutics, Inc.  
Amendment Flag false  
Current Fiscal Year End Date --03-31  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2022  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2021  
Document Transition Report false  
Entity File Number 001-37761  
Entity Incorporation, State or Country Code NV  
Entity Tax Identification Number 20-5093315  
Entity Address, Address Line One 343 Allerton Avenue  
Entity Address, City or Town South San Francisco  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94080  
City Area Code 650  
Local Phone Number 577-3600  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol VTGN  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   199,702,333