| Warrants | Weighted Avg.
Exercise Price | |||||
| Warrants outstanding, January 1, 2011 | 22,979,068 | $0.52 | ||||
| Warrants granted | 29,781,916 | 0.30 | ||||
| Warrants exercised | (224,000 | ) | 0.47 | |||
| Warrants cancelled | (3,430,704 | ) | 0.56 | |||
| Warrants outstanding, December 31, 2011 | 49,106,280 | $0.32 | ||||
| Warrants granted | 9,273,316 | 0.31 | ||||
| Warrants exercised | (12,039,846 | ) | 0.29 | |||
| Warrants cancelled | (4,134,243 | ) | 0.49 | |||
| Warrants outstanding, December 31, 2012 | 42,205,507 | $0.31 | ||||
| Warrants granted | 150,000 | 0.31 | ||||
| Warrants exercised | (29,037,389 | ) | 0.29 | |||
| Warrants cancelled | (1,554,152 | ) | 0.49 | |||
| Warrants outstanding, December 31, 2013 | 11,763,966 | $0.31 | ||||