Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity and Capital Stock - o/s options (Details)

v3.8.0.1
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. 01, 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. 02, 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. 07, 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