|
Warrant Liabilities (Tables)
|
6 Months Ended |
|
Jun. 30, 2014
|
| Warrant Liabilities [Abstract] |
|
| Schedule of Warrant Valuation Assumptions |
The assumptions used in connection with the valuation of warrants issued were as follows: | | | | | | | | | | | | June 30, | | April 3, | | April 2, | | | | | 2014 | | 2014 | | 2014 | | | Number of shares underlying the warrants | | 77,862,807 | | 30,136,713 | | 47,726,094 | | | Exercise price | | $0.0001 - $0.80 | | $0.0001 | | $0.595 - $0.80 | | | Volatility | | 111.17% - 199.57% | | 183.30% | | 134% - 158% | | | Risk-free interest rate | | 0.09% - 1.07% | | 0.11% | | 0.28% - 1.73% | | | Expected dividend yield | | 0.00% | | 0.00% | | 0.00% | | | Expected warrant life (years) | | 0.75 - 3.38 | | 1 | | 1.42 - 3.63 | | | Stock price | | $0.06 | | $0.08 | | $0.09 | | |
| Schedule of Warrant Liabilities at Fair Value |
| Acquisition | | | | | | | | | | | | | | | | | Measurement | | | | | | Increase | | | | | | | | | | | Date | | | | | | (Decrease) | | | | | | | | December 31, | | | April 2, | | | Initial | | | in | | | June 30, | | | | | 2013 | | | 2014 | | | Measurement | | | Fair Value | | | 2014 | | | 2011 Unit Offering | | $ | - | | | $ | 1,242,333 | | | $ | - | | | $ | (899,807 | ) | | $ | 342,526 | | | 2011 Unit Offering Placement Agent | | | - | | | | 156,367 | | | | - | | | | (113,254 | ) | | | 43,113 | | | 2012 Bridge Warrant | | | - | | | | 20,690 | | | | - | | | | (2,988 | ) | | | 17,702 | | | 2012 Bridge Warrant Placement Agent | | | - | | | | 4,138 | | | | - | | | | (598 | ) | | | 3,540 | | | 2012 Unit Offering | | | - | | | | 137,178 | | | | - | | | | (45,283 | ) | | | 91,895 | | | 2012 Unit Offering Placement Agent | | | - | | | | 96,481 | | | | - | | | | (34,436 | ) | | | 62,045 | | | 2013 Merger related notes converted | | | - | | | | 11,608 | | | | - | | | | (3,738 | ) | | | 7,870 | | | 2014 Senior Note Purchase | | | - | | | | - | | | | 2,407,930 | | | | (602,737 | ) | | | 1,805,193 | | | | | $ | - | | | $ | 1,668,795 | | | $ | 2,407,930 | | | $ | (1,702,841 | ) | | $ | 2,373,884 | | |
| Schedule of Warrant Subject to Remeasurement |
Number of Warrants Subject to Remeasurement | | | | | | | | | | | | | | | | | | | | | | | | | Number of Warrants | | | | | | | | April 2, | | | | | | | | | | | | | | December 31, | | | 2014 | | | Warrant | | | June 30, | | | | | 2013 | | | Acquisition | | | Additions | | | Reductions | | | 2014 | | | 2011 Unit Offering | | | - | | | | 33,277,837 | | | | - | | | | - | | | | 33,277,837 | | | 2011 Unit Offering Placement Agent | | | - | | | | 4,726,891 | | | | - | | | | - | | | | 4,726,891 | | | 2012 Bridge Warrant | | | - | | | | 1,137,735 | | | | - | | | | - | | | | 1,137,735 | | | 2012 Bridge Warrant Placement Agent | | | - | | | | 227,546 | | | | - | | | | - | | | | 227,546 | | | 2012 Unit Offering | | | - | | | | 6,300,213 | | | | - | | | | - | | | | 6,300,213 | | | 2012 Unit Offering Placement Agent | | | - | | | | 1,561,544 | | | | - | | | | - | | | | 1,561,544 | | | 2013 Merger related notes converted | | | - | | | | 494,328 | | | | - | | | | - | | | | 494,328 | | | 2014 Senior Note Purchase | | | - | | | | - | | | | 30,136,713 | | | | - | | | | 30,136,713 | | | | | | - | | | | 47,726,094 | | | | 30,136,713 | | | | - | | | | 77,862,807 | | |