Share Capital - Stock Option Activity (Details) - shares |
3 Months Ended | 6 Months Ended | ||||||
---|---|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Mar. 31, 2019 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
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Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | ||||||||
Number of Options Outstanding, Beginning balance | 2,667,449 | 2,671,906 | 2,795,941 | 2,339,905 | 2,671,906 | 2,339,905 | ||
Number of Options, Granted | 0 | 122,750 | 21,900 | 686,450 | ||||
Number of Options, Exercised | [1] | (3,461) | (34,051) | (25,863) | (118,719) | |||
Number of Options, Forfeited, cancelled or expired | (200) | (52,655) | (4,155) | (75,651) | ||||
Number of Options Outstanding, Ending balance | 2,663,788 | 2,667,449 | 2,831,985 | 2,795,941 | 2,663,788 | 2,831,985 | ||
Number of Options Exercisable | 1,913,129 | 1,560,573 | 1,913,129 | 1,560,573 | ||||
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