Consolidated Statements of Shareholders' Equity - 3 months ended Mar. 31, 2018 - USD ($) $ in Thousands |
Capital Stock |
Warrants |
Contributed Surplus [Member] |
Accumulated Other Comprehensive Income |
Deficit |
Total |
|---|---|---|---|---|---|---|
| Beginning Balance at Dec. 31, 2017 | $ 177,063 | $ 4,109 | $ 15,454 | $ 3,663 | $ (161,508) | $ 38,781 |
| Beginning Balance (in shares) at Dec. 31, 2017 | 146,531,933,000 | 146,531,933 | ||||
| Exercise of stock options | $ 59 | (17) | $ 42 | |||
| Exercise of stock options (in shares) | 67,719,000 | 67,719 | ||||
| Common shares issued for cash, net of issue costs (in shares) | 1,536,169 | |||||
| Redemption of vested RSUs | (13) | $ (13) | ||||
| Non-cash stock compensation | 330 | 330 | ||||
| Net loss and comprehensive (loss) income | (21) | 6,418 | 6,397 | |||
| Ending Balance at Mar. 31, 2018 | $ 177,122 | $ 4,109 | $ 15,754 | $ 3,642 | $ (155,090) | $ 45,537 |
| Ending Balance (in shares) at Mar. 31, 2018 | 146,599,652,000 | 146,599,652 |
| X | ||||||||||
- Definition This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after income tax of income (loss) including the portion attributable to nonredeemable noncontrolling interest. Excludes the portion attributable to redeemable noncontrolling interest recognized as temporary equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Value of stock issued as a result of the exercise of stock options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|