Summary of Significant Accounting Policies (Details 3) - shares		6 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
Antidilutive securities		10,007,309	9,696,187
Series A Preferred Stock [Member]
Antidilutive securities	[1]	750,000	750,000
Series B Preferred Stock [Member]
Antidilutive securities	[2]	1,160,240	3,426,523
Series C Preferred Stock [Member]
Antidilutive securities	[3]	2,318,012	0
2008 and 1999 Plan [Member]
Antidilutive securities		1,100,643	296,738
Warrant [Member]
Antidilutive securities		4,678,414	4,687,211
Warrant shares issuable to PLTG upon exchange of Series A Preferred [Member]
Antidilutive securities		0	535,715

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

[2] Assumes exchange under the terms of the Certificate of Designation of the Relative Rights and Preferences of the Series B 10% Convertible Preferred Stock, effective May 5, 2015

[3] Assumes exchange under the terms of the Certificate of Designation of the Relative Rights and Preferences of the Series C Convertible Preferred Stock, effective January 25, 2016