Warrants (Details) (USD $)	Jun. 30, 2012
Warrants outstanding and exercisable
Weighted Average Exercise Prices	$ 0.69
Number Outstanding And Exercisable At March 31, 2012	10,057,628
Weighted Average Remaining Contractual Life	10 years 4 months 24 days
PrivatePlacementEquityOffering2008Member
Warrants outstanding and exercisable
Weighted Average Exercise Prices	$ 3
Number Outstanding And Exercisable At March 31, 2012	1,718,350
Weighted Average Remaining Contractual Life	9 years 7 months 6 days
PrivatePlacementEquityOffering2010Member
Warrants outstanding and exercisable
Weighted Average Exercise Prices	$ 0.21
Number Outstanding And Exercisable At March 31, 2012	8,339,278
Weighted Average Remaining Contractual Life	10 years 8 months 3 days