|
Warrant Liabilities (Schedule of Warrants Issued) (Details) (USD $)
|
6 Months Ended | 12 Months Ended | 6 Months Ended | 6 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2012
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Oct. 28, 2011
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Jun. 22, 2011
Warrant [Member]
|
Jun. 02, 2011
Warrant [Member]
|
Sep. 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]
|
Sep. 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]
|
Sep. 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 | 34,165,965 | 34,165,965 | 32,880,252 | 32,878,751 | |||||||||
| Exercise price of warrants | $ 1.0 | $ 0.82 | $ 3.15 | $ 0.64 | $ 0.64 | $ 0.64 | $ 1.0 | $ 1.0 | $ 1.0 | ||||
| Expected volatility | 181.00% | 211.00% | |||||||||||
| Risk-free interest rate | 1.04% | 0.23% | 0.33% | ||||||||||
| Dividend yield | 0.00% | 0.00% | |||||||||||
| Expected term (in years), minimum | 2 | 2.24 | |||||||||||
| Expected term (in years), maximum | 4.33 | 4.33 |