Exercise Price |
Number of Shares Outstanding under Warrant |
|||
Issuance Date |
Expiration Date |
per Share |
December 31, 2013 |
December 31, 2012 |
November 1, 2011 |
October 31, 2013 |
$ 3.23 |
- |
21,000 |
May 1, 2012 |
April 30, 2014 |
$ 3.18 |
21,000 | 21,000 |
November 1, 2012 |
October 31, 2014 |
$ 1.93 |
21,000 | 21,000 |
May 1, 2013 |
April 30, 2015 |
$ 1.88 |
21,000 |
- |
May 13, 2013 |
May 13, 2016 |
$ 1.46 |
413,359 |
- |
November 1, 2013 |
October 31, 2015 |
$ 3.89 |
21,000 |
- |
497,359 | 63,000 | |||