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Warrant Liabilities (Narrative) (Details) (USD $)
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0 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 0 Months Ended | 6 Months Ended | 0 Months Ended | 6 Months Ended | 6 Months Ended | 0 Months Ended | 6 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 20, 2012
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Nov. 18, 2011
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Oct. 28, 2011
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Jun. 15, 2011
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Sep. 30, 2012
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Sep. 30, 2011
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Sep. 30, 2012
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Sep. 30, 2011
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Mar. 31, 2012
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Mar. 31, 2011
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Aug. 29, 2011
Bridge Debentures [Member]
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Sep. 20, 2012
$1,275,000 12% Convertible Debentures [Member]
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Sep. 07, 2012
$1,275,000 12% Convertible Debentures [Member]
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Sep. 30, 2012
$1,275,000 12% Convertible Debentures [Member]
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Jun. 22, 2011
Warrant [Member]
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Jun. 02, 2011
Warrant [Member]
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Sep. 30, 2012
Warrant [Member]
Bridge Debentures [Member]
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Aug. 29, 2011
Warrant [Member]
Bridge Debentures [Member]
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Sep. 30, 2012
Warrant [Member]
12,500,000 Unit Offering [Member]
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Nov. 17, 2011
Warrant [Member]
12,500,000 Unit Offering [Member]
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Oct. 28, 2011
Warrant [Member]
12,500,000 Unit Offering [Member]
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Aug. 29, 2011
Warrant [Member]
12% Convertible Debentures Placement Agent [Member]
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Sep. 30, 2012
Warrant [Member]
12% Convertible Debentures Placement Agent [Member]
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| Class of Warrant or Right [Line Items] | |||||||||||||||||||||||
| Conversion of warrants, shares | 331,303 | ||||||||||||||||||||||
| Exercise price of warrants | 1.0 | 0.82 | 3.15 | ||||||||||||||||||||
| Other income | $ 572 | $ 1,199 | $ 3,634 | $ 1,426 | $ 10,076 | $ 25,407 | $ 523,553 | ||||||||||||||||
| Gross proceeds from long term debt | 1,275,000 | 1,800,000 | 275,000 | 1,000,000 | |||||||||||||||||||
| Interest rate | 12.00% | 12.00% | |||||||||||||||||||||
| Unamortized discount on debt instrument | 244,000 | 1,249,792 | 1,556,289 | ||||||||||||||||||||
| Debt issuance costs | 275,936 | 3,606,399 | 811,447 | 1,522,784 | |||||||||||||||||||
| Proceeds from stock issuance, gross | 345,000 | 12,155,000 | 1,170,000 | 12,500,000 | |||||||||||||||||||
| Initial liabililty of warrant | 860,112 | 27,647,424 | |||||||||||||||||||||
| Closing market price of common stock | $ 1.5 | $ 0.75 | $ 0.7 | $ 0.9 | $ 1.25 | ||||||||||||||||||
| Warrant revaluation income | $ 14,758,437 | $ (6,089,324) | $ 5,429,786 | $ (5,565,771) | $ 5,452,436 | $ (1,935,256) | $ 69,917 | $ 3,518,999 | $ 0 | $ 1,840,870 | |||||||||||||