v2.4.0.6

Warrant Liabilities (Schedule of Warrant Liabilities at Fair Value) (Details) (USD $) | 6 Months Ended |  |  |  | 6 Months Ended
--- | --- | --- | --- | --- | ---
Sep. 30, 2012 | Mar. 31, 2012 | Sep. 30, 2012 Warrant [Member] | May 31, 2011 Warrant [Member] | Sep. 30, 2012 Bridge Warrant [Member] Warrant [Member] | Sep. 30, 2012 Bridge Warrant Placement Agent [Member] Warrant [Member] | Sep. 30, 2012 Unit Offerings [Member] Warrant [Member] | Sep. 30, 2012 Unit Offerings Placement Agent Member Warrant [Member] | Sep. 30, 2012 2012 Bridge Warrant [Member] Warrant [Member] | Sep. 30, 2012 2012 Bridge Placement Agent Warrant [Member] Warrant [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares underlying the warrants |  | 34,165,965 |  |  | 8,789,064 | 1,165,875 | 19,800,313 | 3,125,000 | 1,071,428 | 214,285
Beginning balance | $ 25,797,615 |  | $ 32,880,252 | $ 27,797,615 | $ 6,604,706 | $ 876,119 | $ 15,816,980 | $ 2,499,810 |  |
Initial measurement of warrants | 860,112 |  |  |  |  |  |  |  | 716,760 | 143,352
Increase in fair value | (5,429,786) |  |  |  | (1,625,276) | (215,594) | (3,042,276) | (476,723) | (58,264) | (11,653)
Ending balance | $ 21,227,942 |  | $ 32,880,252 | $ 27,797,615 | $ 4,979,430 | $ 660,525 | $ 12,774,704 | $ 2,023,088 | $ 658,496 | $ 131,699

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- Definition Aggregate amount of each class of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 4 -Section 08 -Paragraph i Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 + Details
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- Definition The increase (decrease) of liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period. Such increase (decrease) may be comprised of changes in fair value (gains or losses) whether realized or unrealized that have been included in earnings, changed net asset value, or other comprehensive income (a separate component of shareholders' equity); purchases, sales, issuances, or settlements of assets; and net transfers in to or out of this category within the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c(1), c(2), c(3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition This element represents a liability measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258 + Details
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