(7) Derivative Financial Instruments (Tables)

12 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of derivative instruments

	Total		Warrant Derivative		Put Derivative
Balances at April 1, 2011	$	2,842,415	$	2,837,143	$	5,272
Fair value adjustments		162,904		168,176		(5,272	)
Balances at March 31, 2012		3,005,319		3,005,319		—
Fair value adjustments		1,659,575		1,659,575		—
Balances at March 31, 2013	$	4,664,894	$	4,664,894	$	—