The following table provides a reconciliation of all US$ warrants for the years ended June 30, 2013 and 2012:
| Year Ended June 30, | ||||||||||||||||
| 2013 | 2012 | |||||||||||||||
| Number of Warrants |
Weighted Average Exercise Price |
Number of Warrants |
Weighted Average Exercise Price |
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|
Balance at beginning of year |
2,064,710 | $ | 6.17 | 7,614,748 | $ | 7.35 | ||||||||||
|
Issued |
623,605 | 2.50 | — | — | ||||||||||||
|
Expired |
(1,512,210 | ) | 6.60 | (5,550,038 | ) | 7.79 | ||||||||||
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|
Balance and exercisable at end of year |
1,176,105 | $ | 3.67 | 2,064,710 | $ | 6.17 | ||||||||||
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At June 30, 2013, the remaining lives of these outstanding warrants ranged from 2.6 to 4.1 years, representing a weighted-average term of 3.4 years.
The following table provides a reconciliation of all A$ warrants for the years ended June 30, 2013 and 2012:
| Year Ended June 30, | ||||||||||||||||
| 2013 | 2012 | |||||||||||||||
| Number of Warrants |
Weighted Average Exercise Price A$ |
Number of Warrants |
Weighted Average Exercise Price A$ |
|||||||||||||
|
Balance at beginning of year |
205,479 | 7.68 | 205,479 | 7.68 | ||||||||||||
|
Expired |
(205,479 | ) | 7.68 | — | — | |||||||||||
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Balance and exercisable at end of year |
— | — | 205,479 | 7.68 | ||||||||||||
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