(4) Union Capital Financing (Detail) - (Table 3) (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Total
Fair Value Liabilities Measured On Recurring Basis Obligations [Roll Forward]
Balances	$ 5,574,666	$ 7,345,500
Fair value adjustments	1,659,575	162,904
Payments of debt		(2,500,000)
Accretion	563,535	566,262
Balances	7,797,776	5,574,666
Senior Notes
Fair Value Liabilities Measured On Recurring Basis Obligations [Roll Forward]
Balances		2,500,000
Fair value adjustments
Payments of debt		(2,500,000)
Accretion
Balances
Warrants
Fair Value Liabilities Measured On Recurring Basis Obligations [Roll Forward]
Balances	3,005,319	2,837,143
Fair value adjustments	1,659,575	168,176
Payments of debt
Accretion
Balances	4,664,894	3,005,319
Put Derivative
Fair Value Liabilities Measured On Recurring Basis Obligations [Roll Forward]
Balances		5,272
Fair value adjustments		(5,272)
Payments of debt
Accretion
Balances
Series D Preferred Stock
Fair Value Liabilities Measured On Recurring Basis Obligations [Roll Forward]
Balances	2,569,347	2,003,085
Fair value adjustments
Payments of debt
Accretion	563,535	566,262
Balances	$ 3,132,882	$ 2,569,347