| December 31, 2013 warrants outstanding | December 31, 2013 warrants exercisable | |||||||||||||||||||
|
Range of exercise price |
Number outstanding at December 31, 2013 |
Weighted average remaining contractual life |
Weighted average exercise price |
Number exercisable at December 31, 2013 |
Weighted average exercise price |
|||||||||||||||
| $ | 0.25 |
– |
0.60 |
44,728,873 |
2.05 | $ | 0.36 | 44,728,873 | $ | 0.36 | ||||||||||
| December 31, 2012 warrants outstanding | December 31, 2012 warrants exercisable | |||||||||||||||||||||
| Range of exercise price |
Number outstanding at December 31, 2012 |
Weighted average remaining contractual life |
Weighted average exercise price |
Number exercisable at December 31, 2012 |
Weighted average exercise price |
|||||||||||||||||
| $ |
0.25 |
– | 0.60 | 43,412,873 | 2.32 | $ | 0.36 | 43,412,873 | $ | 0.36 | ||||||||||||