AV-101 Acquisition	12 Months Ended
Mar. 31, 2013
Business Combinations [Abstract]
AV-101 Acquisition	In November 2003, pursuant to an Agreement and Plan of Merger (the “Artemis Agreement”), the Company acquired Artemis, a private company also in the development stage, for the purpose of acquiring exclusive licenses to patents and other intellectual property related to the use and function of AV-101, a new drug candidate then in nonclinical development, with the potential to treat neuropathic pain, depression, and other neurological diseases and disorders, epilepsy, Huntington’s disease and Parkinson’s disease. Pursuant to the Artemis Agreement, each share of common stock of Artemis was converted into the right to receive 0.9045 shares of VistaGen California’s Series B-1 Preferred Stock, resulting in VistaGen California’s pre-Merger issuance of 1,356,750 shares of its Series B-1 Preferred Stock. The shares of Series B-1 Preferred Stock were valued, pre-Merger, at $5.545 per share, and accordingly the pre-Merger purchase price of all outstanding shares of Artemis in 2003 was $7,523,200. The total purchase price was allocated to AV-101 acquired in-process research and development and was expensed subsequent to the acquisition, since AV-101 required further research and development before the Company could commence clinical trials and did not have any proven alternative future uses. The NIH awarded the Company an aggregate of $4.2 million to support nonclinical development of AV-101 during fiscal years 2006 through 2008, culminating in the submission in November 2008 of its Investigational New Drug ("IND") application to conduct Phase 1 human clinical testing of AV-101 for neuropathic pain. In April 2009, the NIH awarded the Company an aggregate of $4.2 million grant to support the Phase 1 clinical development of AV-101, and subsequently increased the grant to an aggregate of $4.6 million in July 2010. The Company completed the Phase 1a clinical trial of AV-101 during the third calendar quarter of 2011 and completed the Phase 1b clinical testing in the last half of calendar 2012. To date, VistaGen has received an aggregate of $8.8 million from the NIH for non-clinical and clinical development of AV-101.

AV-101 Acquisition

12 Months Ended

Mar. 31, 2013

In November 2003, pursuant to an Agreement and Plan of Merger (the “Artemis Agreement”), the Company acquired Artemis, a private company also in the development stage, for the purpose of acquiring exclusive licenses to patents and other intellectual property related to the use and function of AV-101, a new drug candidate then in nonclinical development, with the potential to treat neuropathic pain, depression, and other neurological diseases and disorders, epilepsy, Huntington’s disease and Parkinson’s disease. Pursuant to the Artemis Agreement, each share of common stock of Artemis was converted into the right to receive 0.9045 shares of VistaGen California’s Series B-1 Preferred Stock, resulting in VistaGen California’s pre-Merger issuance of 1,356,750 shares of its Series B-1 Preferred Stock. The shares of Series B-1 Preferred Stock were valued, pre-Merger, at $5.545 per share, and accordingly the pre-Merger purchase price of all outstanding shares of Artemis in 2003 was $7,523,200. The total purchase price was allocated to AV-101 acquired in-process research and development and was expensed subsequent to the acquisition, since AV-101 required further research and development before the Company could commence clinical trials and did not have any proven alternative future uses.

The NIH awarded the Company an aggregate of $4.2 million to support nonclinical development of AV-101 during fiscal years 2006 through 2008, culminating in the submission in November 2008 of its Investigational New Drug ("IND") application to conduct Phase 1 human clinical testing of AV-101 for neuropathic pain. In April 2009, the NIH awarded the Company an aggregate of $4.2 million grant to support the Phase 1 clinical development of AV-101, and subsequently increased the grant to an aggregate of $4.6 million in July 2010. The Company completed the Phase 1a clinical trial of AV-101 during the third calendar quarter of 2011 and completed the Phase 1b clinical testing in the last half of calendar 2012. To date, VistaGen has received an aggregate of $8.8 million from the NIH for non-clinical and clinical development of AV-101.