Shareholders' Equity and Capital Stock - o/s options (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | |
Mar. 31, 2018 | Dec. 31, 2017 |
Outstanding Stock Options | | |
Exercise price | $ 0.68 | $ 0.70 |
Number of options, Outstanding | 9,471,947 | 9,459,401 |
Weighted- average remaining contractual life (years), Outstanding | 3 years 1 month 6 days | |
Aggregate Intrinsic Value, Outstanding | $ 99 | |
Number of options, Exercisable | 6,302,049 | |
Weighted- average remaining contractual life (years), Exercisable | 2 years 6 months | |
Aggregate Intrinsic Value, Exercisable | $ 71 | |
Exercise price $0.60 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.60 | |
Number of options, Outstanding | 452,232 | |
Weighted- average remaining contractual life (years), Outstanding | 1 month 6 days | |
Number of options, Exercisable | 452,232 | |
Weighted- average remaining contractual life (years), Exercisable | 1 month 6 days | |
Expiry | Apr. 25, 2018 | |
Exercise price $0.96 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.96 | |
Number of options, Outstanding | 100,000 | |
Weighted- average remaining contractual life (years), Outstanding | 3 months 18 days | |
Number of options, Exercisable | 100,000 | |
Weighted- average remaining contractual life (years), Exercisable | 3 months 18 days | |
Expiry | Aug. 1, 2018 | |
Exercise price $0.93 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.93 | |
Number of options, Outstanding | 715,236 | |
Weighted- average remaining contractual life (years), Outstanding | 8 months 12 days | |
Number of options, Exercisable | 715,236 | |
Weighted- average remaining contractual life (years), Exercisable | 8 months 12 days | |
Expiry | Dec. 27, 2018 | |
Exercise price $1.30 | | |
Outstanding Stock Options | | |
Exercise price | $ 1.30 | |
Number of options, Outstanding | 100,000 | |
Weighted- average remaining contractual life (years), Outstanding | 1 year | |
Number of options, Exercisable | 100,000 | |
Weighted- average remaining contractual life (years), Exercisable | 1 year | |
Expiry | Mar. 31, 2019 | |
Exercise price $0.79 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.79 | |
Number of options, Outstanding | 754,110 | |
Weighted- average remaining contractual life (years), Outstanding | 1 year 8 months 12 days | |
Number of options, Exercisable | 754,110 | |
Weighted- average remaining contractual life (years), Exercisable | 1 year 8 months 12 days | |
Expiry | Dec. 12, 2019 | |
Exercise price $0.88 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.88 | |
Number of options, Outstanding | 200,000 | |
Weighted- average remaining contractual life (years), Outstanding | 2 years 2 months 12 days | |
Number of options, Exercisable | 200,000 | |
Weighted- average remaining contractual life (years), Exercisable | 2 years 2 months 12 days | |
Expiry | May 29, 2020 | |
Exercise price $0.67 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.67 | |
Number of options, Outstanding | 617,654 | |
Weighted- average remaining contractual life (years), Outstanding | 2 years 4 months 24 days | |
Number of options, Exercisable | 617,654 | |
Weighted- average remaining contractual life (years), Exercisable | 2 years 4 months 24 days | |
Expiry | Aug. 17, 2020 | |
Exercise price $0.62 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.62 | |
Number of options, Outstanding | 1,021,690 | |
Weighted- average remaining contractual life (years), Outstanding | 2 years 8 months 12 days | |
Number of options, Exercisable | 1,021,690 | |
Weighted- average remaining contractual life (years), Exercisable | 2 years 8 months 12 days | |
Expiry | Dec. 11, 2020 | |
Exercise price $0.57 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.57 | |
Number of options, Outstanding | 2,674,875 | |
Weighted- average remaining contractual life (years), Outstanding | 3 years 8 months 12 days | |
Aggregate Intrinsic Value, Outstanding | $ 92 | |
Number of options, Exercisable | 2,059,127 | |
Weighted- average remaining contractual life (years), Exercisable | 3 years 8 months 12 days | |
Aggregate Intrinsic Value, Exercisable | $ 71 | |
Expiry | Dec. 16, 2021 | |
Exercise price $0.79 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.79 | |
Number of options, Outstanding | 300,000 | |
Weighted- average remaining contractual life (years), Outstanding | 3 years 10 months 24 days | |
Number of options, Exercisable | 162,000 | |
Weighted- average remaining contractual life (years), Exercisable | 3 years 10 months 24 days | |
Expiry | Mar. 2, 2022 | |
Exercise price $0.57 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.57 | |
Number of options, Outstanding | 200,000 | |
Weighted- average remaining contractual life (years), Outstanding | 4 years 4 months 24 days | |
Aggregate Intrinsic Value, Outstanding | $ 7 | |
Weighted- average remaining contractual life (years), Exercisable | 0 years | |
Expiry | Sep. 7, 2022 | |
Exercise Price $0.70 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.70 | |
Number of options, Outstanding | 2,136,150 | |
Weighted- average remaining contractual life (years), Outstanding | 4 years 8 months 12 days | |
Number of options, Exercisable | 120,000 | |
Weighted- average remaining contractual life (years), Exercisable | 4 years 8 months 12 days | |
Expiry | Dec. 15, 2022 | |
Exercise Price $0.60 | | |
Outstanding Stock Options | | |
Exercise price | $ 0.60 | |
Number of options, Outstanding | 200,000 | |
Weighted- average remaining contractual life (years), Outstanding | 5 years | |
Weighted- average remaining contractual life (years), Exercisable | 0 years | |
Expiry | Mar. 30, 2023 | |