Common Stock - Summary of Stock Options Activity (Detail) - $ / shares |
9 Months Ended | |
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Sep. 30, 2017 |
Sep. 30, 2016 |
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| Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | ||
| Number of Optioned Common Shares, Additions from OncoGenex Plans | 113,451 | |
| Number of Optioned Common Shares, Granted | 1,052,200 | 0 |
| Number of Optioned Common Shares, Expired | (19,544) | |
| Number of Optioned Common Shares, Ending Balance | 1,146,107 | |
| Weighted Average Exercise Price, Additions from OncoGenex Plans | $ 92.61 | |
| Weighted Average Exercise Price, Granted | 2.89 | |
| Weighted Average Exercise Price, Expired | 114.53 | |
| Weighted Average Exercise Price, Ending Balance | $ 9.87 | |
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- Definition Share based compensation arrangement by share based payment award options additions on reverse takeover. No definition available.
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- Definition Share based compensation arrangements by share based payment award options additions on reverse takeover in period weighted average exercise price. No definition available.
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- References No definition available.
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired. No definition available.
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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