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Warrants and Derivative Liabilities (Tables) | 6 Months Ended
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Sep. 30, 2013
Schedule of Fair Value Assumptions Used to Calculate Value of Convertible Note Derivative Feature | Following is a summary of the key assumptions used to value the convertible notes derivative feature s:
| September 30, |  |  | June 30, |
--- | --- | --- | --- | --- | ---
Fiscal Year 2013 | 2013 |  |  | 2013 |
Principal o utstanding (000’s) | $ |  | 10,411 |  |  | $ |  | 14,389 |
Stock p rice | $ |  | 2.34 |  |  | $ |  | 2.64 |
Percentage v olume c ondition m et |  | 80.2 |  | % |  |  | 87.5 |  | %
Expected v olatility |  | 66.3 |  | % |  |  | 65.8 |  | %
Risk f ree interest r ate |  | 0.10 |  | % |  |  | 0.21 |  | %
Bond y ield |  | 15.5 |  | % |  |  | 16.7 |  | %
Recovery r ate |  | 35.0 |  | % |  |  | 37.0 |  | %
Redeemable |  | yes |  |  |  | yes |
Total t ime (years) |  | 1.00 |  |  |  | 1.26 |
Dilution e ffect |  | yes |  |  |  | yes |
Fair v alue | $ |  | 0.2 million |  |  | $ |  | 0.5 million |
Fair v alue as a p ercent of p ar |  | 0.7 |  | % |  |  | 3.3 |  | %
Fiscal Year 2012 | March 31, 2013 |  |  | December 31, 2012 |  |  | Post- modification December 20, 2012 |  |  | Pre-modification December 20, 2012 |  |  | September 30, 2012 |  |  | June 30, 2012 |  |  | April 4, 2012 |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Principal o utstanding (000’s) | $ |  | 15,380 |  |  | $ |  | 20,944 |  |  | $ |  | 20,944 |  |  | $ |  | 24,074 |  |  | $ |  |  | 24,074 |  |  | $ |  | 25,000 |  |  | $ |  | 25,000 |
Stock p rice | $ |  | 2.67 |  |  | $ |  | 2.62 |  |  | $ |  | 2.95 |  |  | $ |  | 2.95 |  |  | $ |  | 4.15$ |  |  |  | $ |  | 4.68 |  |  | $ |  | 3.97 |
Percentage v olume c ondition m et |  | 80.5 |  | % |  |  | 94.5 |  | % |  |  | 94.9 |  | % |  |  | 28.6 |  | % |  |  |  | 51.0 |  | % |  |  | 75.2 |  | % |  |  | 85.9 |  | %
Expected v olatility |  | 66.9 |  | % |  |  | 73.5 |  | % |  |  | 72.5 |  | % |  |  | 72.5 |  | % |  |  |  | 70.0 |  | % |  |  | 71.0 |  | % |  |  | 75.0 |  | %
Risk f ree interest r ate |  | 0.20 |  | % |  |  | 0.23 |  | % |  |  | 0.25 |  | % |  |  | 0.25 |  | % |  |  |  | 0.23 |  | % |  |  | 0.33 |  | % |  |  | 0.44 |  | %
Bond y ield |  | 16.5 |  | % |  |  | 16.5 |  | % |  |  | 16.5 |  | % |  |  | 16.5 |  | % |  |  |  | 15.0 |  | % |  |  | 16.0 |  | % |  |  | 15.0 |  | %
Recovery r ate |  | 30.0 |  | % |  |  | 30.0 |  | % |  |  | 30.0 |  | % |  |  | 30.0 |  | % |  |  |  | 30.0 |  | % |  |  | 30.0 |  | % |  |  | 30.0 |  | %
Redeemable |  | yes |  |  |  | yes |  |  |  | yes |  |  |  | yes |  |  |  | yes |  |  |  | yes |  |  |  | yes |
Total t ime (years) |  | 1.51 |  |  |  | 1.76 |  |  |  | 1.79 |  |  |  | 1.79 |  |  |  |  | 2.01 |  |  |  | 2.28 |  |  |  | 2.5 |
Dilution e ffect |  | yes |  |  |  | yes |  |  |  | yes |  |  |  | yes |  |  |  | yes |  |  |  | yes |  |  |  | yes |
Fair v alue as a p ercent of p ar |  | 3.4 |  | % |  |  | 4.9 |  | % |  |  | 7.1 |  | % |  |  | 3.9 |  | % |  |  |  | 11.4 |  | % |  |  | 17.9 |  | % |  |  | 15.1 |  | %
Fair v alue | $ |  | 0.5 million |  |  | $ |  | 1.0 million |  |  | $ |  | 1.5 million |  |  | $ |  | 0.9 million |  |  | $ |  | 2.8 million |  |  | $ |  | 4.5 million |  |  | $ |  | 3.8 million |
Securities Purchase Agreement |
Schedule of Fair Value of Warrants Using Black-Scholes Option Pricing Model | Following is a summary of the key assumptions used to calculate the fair value of the warrant:
Fiscal Year 2013 | September 30, 2013 |  |  | June 30, 2013 |
--- | --- | --- | --- | --- | ---
Risk-free interest rate |  | 1.02 |  | % |  |  | 1.13 |  | %
Expected annual dividend yield |  | — |  | % |  |  | — |  | %
Expected volatility |  | 72.0 |  | % |  |  | 71.9 |  | %
Term (years) |  | 4.01 |  |  |  | 4.27 |
Fair v alue | $ |  | 2.5 million |  |  | $ |  |  | 3.0 million |
Fiscal Year 2012 | March 31, 2013 |  |  | December 31, 2012 |  |  | September 30, 2012 |  |  | June 30, 2012 |  |  | April 4, 2012 |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Risk-free interest rate |  | 0.67 |  | % |  |  | 0.75 |  | % |  |  | 0.63 |  | % |  |  | 0.77 |  | % |  |  | 1.19 |  | %
Expected annual dividend yield |  | — |  | % |  |  | — |  | % |  |  | — |  | % |  |  | — |  | % |  |  | — |  | %
Expected volatility |  | 71.7 |  | % |  |  | 80.6 |  | % |  |  | 80.9 |  | % |  |  | 80.8 |  | % |  |  | 80.0 |  | %
Term (years) |  | 4.51 |  |  |  | 4.76 |  |  |  | 5.01 |  |  |  | 5.28 |  |  |  | 5.5 |
Fair v alue | $ |  | 3.4 million |  |  | $ |  | 4.4 million |  |  | $ |  | 7.1 million |  |  | $ |  | 8.6 million |  |  | $ |  | 7.0 million |
Loan and Security Agreement |
Schedule of Fair Value of Warrants Using Black-Scholes Option Pricing Model | Following is a summary of the key assumptions used to calculate the fair value of the warrant:
Fiscal Year 2013 | September 30, 2013 |  |  | June 30, 2013 |
--- | --- | --- | --- | --- | ---
Risk-free interest rate |  | 1.09 |  | % |  |  | 1.20 |  | %
Expected annual dividend yield |  | — |  | % |  |  | — |  | %
Expected volatility |  | 72.1 |  | % |  |  | 72.3 |  | %
Term (years) |  | 4.18 |  |  |  | 4.43 |
Fair Value | $ |  | 0.2 million |  |  | $ |  | 0.2 million |
Fiscal Year 2012 | March 31, 2013 |  |  | December 31, 2012 |  |  | September 30, 2012 |  |  | June 30, 2012 |  |  | June 5, 2012 |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Risk-free interest rate |  | 0.70 |  | % |  |  | 0.75 |  | % |  |  | 0.64 |  | % |  |  | 0.80 |  | % |  |  | 0.77 |  | %
Expected annual dividend yield |  | — |  | % |  |  | — |  | % |  |  | — |  | % |  |  | — |  | % |  |  | — |  | %
Expected volatility |  | 72.01 |  | % |  |  | 80.14 |  | % |  |  | 81.18 |  | % |  |  | 80.32 |  | % |  |  | 79.99 |  | %
Term (years) |  | 4.68 |  |  |  | 4.93 |  |  |  | 5.18 |  |  |  | 5.44 |  |  |  | 5.5 |
Fair Value | $ |  | 0.2 million |  |  | $ |  | 0.2 million |  |  | $ |  | 0.4 million |  |  | $ |  | 0.5 million |  |  | $ |  | 0.4 million |

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- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41678-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41620-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579240-113959 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41641-113959 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41638-113959 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 Reference 11: 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.(n)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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