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Common Shares (Tables) | 9 Months Ended
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Sep. 30, 2020
Common Shares |
Summary of stock-based compensation expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30, | ​
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019 |
Restricted share units | ​ | $ | 158 | ​ | $ | 119 | ​ | $ | 489 | ​ | $ | 246 | ​
Deferred share units | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 209 | ​ | ​ | 209 | ​
Stock Options | ​ | ​ | 7 | ​ | ​ | 29 | ​ | ​ | 59 | ​ | ​ | 160 | ​
​ | ​ | $ | 165 | ​ | $ | 148 | ​ | $ | 757 | ​ | $ | 615 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Phantom units | ​ | $ | 45 | ​ | $ | 28 | ​ | $ | 79 | ​ | $ | 72 | ​
Summary of restricted stock unit activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted average | ​
​ | ​ | Number | ​ | grant-date fair | ​
​ |  | of RSUs |  | value per RSU | ​
Unvested - December 31, 2018 | ​ | 1,002,670 |  | $ | 0.78 |
Granted | ​ | 1,412,500 | ​ | ​ | 0.49 | ​
Cancelled/forfeited | ​ | (657,573) | ​ | ​ | 0.76 | ​
Vested, net of shares withheld | ​ | (266,296) | ​ | ​ | 0.84 | ​
Unvested - December 31, 2019 | ​ | 1,491,301 |  | $ | 0.51 |
Granted | ​ | 1,609,000 | ​ | ​ | 0.41 | ​
Cancelled/forfeited | ​ | (237,853) | ​ | ​ | 0.60 | ​
Vested, net of shares withheld | ​ | (395,446) | ​ | ​ | 0.63 | ​
Unvested - September 30, 2020 | ​ | 2,467,002 | ​ | $ | 0.42 | ​
Summary of deferred stock units | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted average | ​
​ | ​ | Number of | ​ | grant-date fair | ​
​ |  | DSUs |  | value per DSU |
Unvested - December 31, 2018 | ​ | — |  | — | ​
Granted | ​ | 366,000 | ​ | 0.57 | ​
Outstanding - December 31, 2019 | ​ | 366,000 | ​ | 0.57 | ​
Granted | ​ | 360,000 | ​ | 0.58 | ​
Outstanding - September 30, 2020 | ​ | 726,000 | ​ | 0.57 | ​
Summary of option activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Weighted average | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted average | ​ | remaining | ​ | Aggregate | ​
​ | ​ | Number of | ​ | exercise price | ​ | contractual term | ​ | intrinsic | ​
​ |  | options |  | per option |  | (years) |  | value |
Outstanding - December 31, 2018 | ​ | 1,319,149 |  | ​ | 0.71 | ​ | 3.84 | ​ | $ | 1 | ​
Granted | ​ | 350,000 | ​ | ​ | 0.73 | ​ | ​ | ​ | ​ | ​ | ​
Exercised | ​ | (163,667) | ​ | ​ | 0.54 | ​ | ​ | ​ | ​ | 33 | ​
Cancelled/Forfeited | ​ | (16,667) | ​ | ​ | 0.75 | ​ | ​ | ​ | ​ | — | ​
Expired | ​ | (51,815) | ​ | ​ | 0.70 | ​ | ​ | ​ | ​ | 2 | ​
Outstanding - December 31, 2019 | ​ | 1,437,000 |  | $ | 0.73 | ​ | 3.49 | ​ | $ | 35 | ​
Granted | ​ | 50,000 | ​ | ​ | 0.51 | ​ | ​ | ​ | ​ | ​ | ​
Exercised | ​ | (50,000) | ​ | ​ | 0.75 | ​ | ​ | ​ | ​ | 9 | ​
Cancelled/Forfeited | ​ | (70,000) | ​ | ​ | 1.02 | ​ | ​ | ​ | ​ | — | ​
Outstanding - September 30, 2020 | ​ | 1,367,000 | ​ | $ | 0.71 | ​ | 2.89 | ​ | $ | 520 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable - September 30, 2020 | ​ | 1,333,667 | ​ | $ | 0.71 | ​ | 2.87 | ​ | $ | 507 | ​
Summary of the status of unvested stock options | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​
​ | ​ | ​ | ​ | Weighted | ​ | average | ​
​ | ​ | ​ | ​ | average | ​ | remaining | ​
​ | ​ | ​ | ​ | grant-date | ​ | amortization | ​
​ | ​ | Number of | ​ | fair value | ​ | period | ​
​ |  | options |  | per option |  | (years) |
Unvested - December 31, 2018 | ​ | 759,669 | ​ | $ | 0.45 | ​ | 1.14 | ​
Granted | ​ | 350,000 | ​ | ​ | 0.30 | ​ | ​ | ​
Cancelled/Forfeited | ​ | (35,000) | ​ | ​ | 0.43 | ​ | ​ | ​
Vested | ​ | (560,665) | ​ | ​ | 0.41 | ​ | ​ | ​
Unvested - December 31, 2019 | ​ | 514,004 | ​ | $ | 0.40 | ​ | 0.61 | ​
Granted | ​ | 50,000 | ​ | ​ | 0.20 | ​ | ​ | ​
Vested | ​ | (530,671) | ​ | ​ | 0.38 | ​ | ​ | ​
Unvested - September 30, 2020 | ​ | 33,333 | ​ | $ | 0.31 | ​ | 0.50 | ​
Summary of stock option assumptions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30,
​ | ​ | 2020 |  | 2019 |
Expected volatility | ​ | 64.1 | % | ​ | 61.1 | % | ​
Risk-free interest rate | ​ | 0.3 | % | ​ | 2.0 | % | ​
Expected life (years) | ​ | 2.6 | ​ | ​ | 2.8 | ​ | ​
Dividend yield | ​ | 0 | % | ​ | 0 | % | ​
Forfeiture assumption | ​ | 0 | % | ​ | 0 | % | ​
Summary of phantom units | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted average | ​
​ | ​ | ​ | ​ | remaining | ​
​ | ​ | Number of | ​ | vesting term | ​
​ |  | phantom units |  | (years) |
Unvested - December 31, 2018 | ​ | 265,000 |  | ​ | ​
Cancelled/forfeited | ​ | (32,667) | ​ | ​ | ​
Vested | ​ | (88,333) | ​ | ​ | ​
Unvested - December 31, 2019 | ​ | 144,000 | ​ | 1.00 | ​
Vested | ​ | (72,000) | ​ | ​ | ​
Unvested - September 30, 2020 | ​ | 72,000 | ​ | 0.75 | ​

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