Stock Option Plans, Shares Reserved and Warrants (Details) (USD $)	3 Months Ended
	Jun. 30, 2013
Non-Plan Stock Options
Number of Stock Options	100,714
Weighted Average Remaining Contractual Life	0 years 3 months 12 days
Weighted Average Exercise Price	$ 41.27
Number of Stock Options Vested	100,714
2009 Equity Incentive Plan
Number of Stock Options	6,629,140
Weighted Average Remaining Contractual Life	8 years 0 months 4 days
Weighted Average Exercise Price	$ 0.34
Number of Stock Options Vested	5,124,979