Original Number of Warrants Issued | Exercise Price per Common Share | Exercisable at December 31, 2012 | Became Exercisable | Exercised | Terminated / Cancelled / Expired | Exercisable at December 31, 2013 | Expiration Date | |||||||||||||||||||||
2,619,036 | (1) | $ | 3.59 | 159,967 | — | — | — | 159,967 | March 2015 | |||||||||||||||||||
Total | 159,967 | — | — | — | 159,967 | |||||||||||||||||||||||
| (1) | Referred to as our Series I Warrants. |