| Schedule of derivative liabilities valued using a Monte Carlo valuation model |
|
|
|
March 28, 2012 |
|
|
Closing price per share of common stock |
|
0.22 |
|
|
Exercise price per share |
|
0.50 |
|
|
Expected volatility |
|
125.0 |
% |
|
Risk-free interest rate |
|
1.05 |
% |
|
Dividend yield |
|
— |
|
|
Floor price |
|
0.50 |
|
|
Remaining expected term of underlying securities (years) |
|
4.24 |
| |
|
|
|
March 28, 2012 |
|
July 31, 2011 |
|
|
Closing price per share of common stock |
|
0.22 |
|
0.93 |
|
|
Exercise price per share |
|
0.50 |
|
1.20 |
|
|
Expected volatility |
|
125.0 |
% |
91.6 |
% |
|
Risk-free interest rate |
|
1.05 |
% |
1.35 |
% |
|
Dividend yield |
|
— |
|
— |
|
|
Floor price |
|
0.50 |
|
0.50 |
|
|
Remaining expected term of underlying securities (years) |
|
4.24 |
|
4.90 |
|
|