v2.4.0.6
Warrant Liabilities (Schedule of Warrants Issued) (Details) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2012
Oct. 28, 2011
Jun. 22, 2011
Warrant [Member]
Jun. 02, 2011
Warrant [Member]
Jun. 30, 2012
Warrant [Member]
Bridge Debentures and 12,500,000 Unit Offering [Member]
Mar. 31, 2012
Warrant [Member]
Bridge Debentures and 12,500,000 Unit Offering [Member]
May 31, 2011
Warrant [Member]
Bridge Debentures and 12,500,000 Unit Offering [Member]
Jun. 30, 2012
Warrant [Member]
Bridge Debentures and 12,500,000 Unit Offering [Member]
Minimum [Member]
Mar. 31, 2012
Warrant [Member]
Bridge Debentures and 12,500,000 Unit Offering [Member]
Minimum [Member]
May 31, 2011
Warrant [Member]
Bridge Debentures and 12,500,000 Unit Offering [Member]
Minimum [Member]
Jun. 30, 2012
Warrant [Member]
Bridge Debentures and 12,500,000 Unit Offering [Member]
Maximum [Member]
Mar. 31, 2012
Warrant [Member]
Bridge Debentures and 12,500,000 Unit Offering [Member]
Maximum [Member]
May 31, 2011
Warrant [Member]
Bridge Debentures and 12,500,000 Unit Offering [Member]
Maximum [Member]
Class of Warrant or Right [Line Items]                          
Number of shares underlying the warrants 32,880,252       32,880,252 32,880,252 32,878,751            
Exercise price of warrants   $ 1.0 $ 16.4 $ 3.15       $ 0.64 $ 0.64 $ 0.64 $ 1.0 $ 1.0 $ 1.0
Expected volatility         185.00% 211.00%              
Risk-free interest rate         0.33% 1.04%              
Dividend yield         0.00% 0.00%              
Expected term (in years), minimum         2 2.24              
Expected term (in years), maximum         4.08 4.33