|
Years Ended December 31, |
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|
2013 |
2012 |
2011 |
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|
Outstanding, beginning of period |
950 | 970 | 970 | |||||||||
|
Exercised during the period |
(280 | ) | (20 | ) | — | |||||||
|
Cancelled during the period |
(20 | ) | — | — | ||||||||
|
Outstanding, end of period |
650 | 950 | 970 | |||||||||
|
Weighted average exercise price of warrants outstanding at end of period |
$ | 1.00 | $ | 0.90 | $ | 0.88 | ||||||
|
Weighted average remaining contractual life, in years, of warrants outstanding at end of period |
1.0 | 1.9 | 2.8 | |||||||||