Summary of Significant Accounting Policies (Details 2) (USD $)	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Loss per Common Share
Series A preferred stock issued and outstanding	15,000,000	[1]	1,500,000	[1]
Warrant shares issuable to Platinum upon exercise of common stock warrants by Platinum upon exchange of Series A preferred stock under the terms of the October 11, 2012 Note Purchase and Exchange Agreement	7,500,000		7,500,000
Outstanding options under the 2008 and 1999 Stock Incentive Plans	4,249,271		4,912,604		4,805,771
Outstanding warrants to purchase common stock	17,095,633		4,660,335
Convertible promissory notes and accrued interest	$ 396,000
Total	54,063,178		48,848,621
AntidilutiveNotes1 [Member]
Loss per Common Share
Convertible promissory notes and accrued interest	7,495,957	[2]	6,775,682	[2]
AntidilutiveNotes2 [Member]
Loss per Common Share
Convertible promissory notes and accrued interest	535,506
AntidilutiveNotes3 [Member]
Loss per Common Share
Convertible promissory notes and accrued interest	$ 2,186,811

[1] Assumes exchange under the terms of the October 11, 2012 Note Exchange and Purchase Agreement with Platinum

[2] Assumes conversion under the terms of the October 11, 2012 Note Exchange and Purchase Agreement with Platinum and the terms of the individual notes