Note 6 - Share Capital - Loss Per Share (Details) - shares shares in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
|
| Statement Line Items [Line Items] | ||||
| Issued common shares, beginning of period (in shares) | 32,225 | 18,944 | 27,502 | 15,722 |
| Effect of ATM issuances (in shares) | 459 | 2,362 | 231 | 3,651 |
| Effect of shares issued pursuant to share purchase agreements (in shares) | 1,257 | 3,007 | ||
| Effect of exercise of stock options (in shares) | 9 | 4 | ||
| Effect of RSUs redemptions (in shares) | 3 | 2 | ||
| Issued common shares, end of period (in shares) | 33,950 | 21,309 | 30,744 | 19,375 |
| X | ||||||||||
- Definition The number of ordinary shares that relate to the assumed exercise of the entity's ATM issuances. No definition available.
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| X | ||||||||||
- Definition The effect due to the exercise of stock options. No definition available.
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| X | ||||||||||
- Definition The number of potential ordinary shares that relate to RSU redemption. No definition available.
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| X | ||||||||||
- Definition The number of ordinary shares that relate to purchase agreements. No definition available.
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| X | ||||||||||
- Definition Number of ordinary shares outstanding at the beginning of the period to calculate the weighted average number of shares outstanding for the period. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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