Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.1
Shareholders' Equity and Capital Stock - o/s options (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Outstanding Stock Options    
Exercise price $ 0.63 $ 0.64
Number of options, Outstanding 9,631,612 9,731,612
Weighted- average remaining contractual life (years), Outstanding 3 years  
Aggregate Intrinsic Value, Outstanding $ 1,470  
Number of options, Exercisable 6,113,421  
Weighted- average remaining contractual life (years), Exercisable 2 years 3 months 18 days  
Aggregate Intrinsic Value, Exercisable $ 1,017  
Exercise price $0.75    
Outstanding Stock Options    
Exercise price $ 0.75  
Number of options, Outstanding 724,274  
Weighted- average remaining contractual life (years), Outstanding 8 months 12 days  
Aggregate Intrinsic Value, Outstanding $ 37  
Number of options, Exercisable 724,274  
Weighted- average remaining contractual life (years), Exercisable 8 months 12 days  
Aggregate Intrinsic Value, Exercisable $ 37  
Expiry Dec. 12, 2019  
Exercise price $0.84    
Outstanding Stock Options    
Exercise price $ 0.84  
Number of options, Outstanding 200,000  
Weighted- average remaining contractual life (years), Outstanding 1 year 2 months 12 days  
Number of options, Exercisable 200,000  
Weighted- average remaining contractual life (years), Exercisable 1 year 2 months 12 days  
Expiry May 29, 2020  
Exercise price $0.63    
Outstanding Stock Options    
Exercise price $ 0.63  
Number of options, Outstanding 568,602  
Weighted- average remaining contractual life (years), Outstanding 1 year 4 months 24 days  
Aggregate Intrinsic Value, Outstanding $ 88  
Number of options, Exercisable 568,602  
Weighted- average remaining contractual life (years), Exercisable 1 year 4 months 24 days  
Aggregate Intrinsic Value, Exercisable $ 88  
Expiry Aug. 17, 2020  
Exercise price $0.59    
Outstanding Stock Options    
Exercise price $ 0.59  
Number of options, Outstanding 984,878  
Weighted- average remaining contractual life (years), Outstanding 1 year 8 months 12 days  
Aggregate Intrinsic Value, Outstanding $ 186  
Number of options, Exercisable 984,878  
Weighted- average remaining contractual life (years), Exercisable 1 year 8 months 12 days  
Aggregate Intrinsic Value, Exercisable $ 186  
Expiry Dec. 11, 2020  
Exercise price $0.54    
Outstanding Stock Options    
Exercise price $ 0.54  
Number of options, Outstanding 2,411,930  
Weighted- average remaining contractual life (years), Outstanding 2 years 8 months 12 days  
Aggregate Intrinsic Value, Outstanding $ 560  
Number of options, Exercisable 2,411,930  
Weighted- average remaining contractual life (years), Exercisable 2 years 8 months 12 days  
Aggregate Intrinsic Value, Exercisable $ 560  
Expiry Dec. 16, 2021  
Exercise price $0.75    
Outstanding Stock Options    
Exercise price $ 0.75  
Number of options, Outstanding 300,000  
Weighted- average remaining contractual life (years), Outstanding 2 years 10 months 24 days  
Aggregate Intrinsic Value, Outstanding $ 15  
Number of options, Exercisable 300,000  
Weighted- average remaining contractual life (years), Exercisable 2 years 10 months 24 days  
Aggregate Intrinsic Value, Exercisable $ 15  
Expiry Mar. 02, 2022  
Exercise price $0.54    
Outstanding Stock Options    
Exercise price $ 0.54  
Number of options, Outstanding 200,000  
Weighted- average remaining contractual life (years), Outstanding 3 years 4 months 24 days  
Aggregate Intrinsic Value, Outstanding $ 46  
Number of options, Exercisable 66,000  
Weighted- average remaining contractual life (years), Exercisable 3 years 4 months 24 days  
Aggregate Intrinsic Value, Exercisable $ 15  
Expiry Sep. 07, 2022  
Exercise price $0.66    
Outstanding Stock Options    
Exercise price $ 0.66  
Number of options, Outstanding 2,064,916  
Weighted- average remaining contractual life (years), Outstanding 3 years 8 months 12 days  
Aggregate Intrinsic Value, Outstanding $ 266  
Number of options, Exercisable 774,608  
Weighted- average remaining contractual life (years), Exercisable 3 years 8 months 12 days  
Aggregate Intrinsic Value, Exercisable $ 100  
Expiry Dec. 15, 2022  
Exercise price $0.56    
Outstanding Stock Options    
Exercise price $ 0.56  
Number of options, Outstanding 200,000  
Weighted- average remaining contractual life (years), Outstanding 4 years  
Aggregate Intrinsic Value, Outstanding $ 43  
Number of options, Exercisable 66,000  
Weighted- average remaining contractual life (years), Exercisable 4 years  
Aggregate Intrinsic Value, Exercisable $ 14  
Expiry Mar. 30, 2023  
Exercise Price $0.67    
Outstanding Stock Options    
Exercise price $ 0.67  
Number of options, Outstanding 919,358  
Weighted- average remaining contractual life (years), Outstanding 4 years 8 months 12 days  
Aggregate Intrinsic Value, Outstanding $ 111  
Number of options, Exercisable 8,277  
Weighted- average remaining contractual life (years), Exercisable 4 years 8 months 12 days  
Aggregate Intrinsic Value, Exercisable $ 1  
Expiry Dec. 14, 2023  
Exercise Price $0.68    
Outstanding Stock Options    
Exercise price $ 0.68  
Number of options, Outstanding 1,057,654  
Weighted- average remaining contractual life (years), Outstanding 4 years 4 months 24 days  
Aggregate Intrinsic Value, Outstanding $ 118  
Number of options, Exercisable 8,852  
Weighted- average remaining contractual life (years), Exercisable 4 years 4 months 24 days  
Aggregate Intrinsic Value, Exercisable $ 1  
Expiry Aug. 20, 2023