|
Number of warrants |
Weighted average exercise price | |||||||
| Warrants outstanding and exercisable at December 31, 2011 | 3,670,384 | $ | 1.67 | |||||
| Cancelled or expired | (2,270,384 | ) | $ | 1.87 | ||||
| Warrants outstanding and exercisable at December 31, 2012 | 1,400,000 | $ | 1.35 | |||||
| Cancelled or expired | - | $ | - | |||||
| Warrants outstanding and exercisable at December 31, 2013 | 1,400,000 | $ | 1.35 | |||||