|
(in thousands, except per share data) |
Warrants |
Weighted-Average Exercise Price |
||||||
|
Outstanding at December 31, 2011 |
4,863 | $ | 1.77 | |||||
|
Warrants granted |
6,500 | $ | 1.52 | |||||
|
Warrants expired |
(150 | ) | $ | 4.00 | ||||
|
Warrants exercised |
(23 | ) | $ | 1.33 | ||||
|
Outstanding at December 31, 2012 |
11,190 | $ | 1.59 | |||||
|
Warrants granted |
20 | $ | 1.63 | |||||
|
Warrants expired |
(4,633 | ) | $ | 1.50 | ||||
|
Warrants exercised |
(1,812 | ) | $ | 1.50 | ||||
|
Outstanding at December 31, 2013 |
$ | 4,765 | $ | 1.72 | ||||