Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Shareholders' Equity and Capital Stock - o/s warrants (Details) - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Class of Warrant or Right        
Exercise price $ 1.02 $ 1.71 $ 1.20 $ 0.95
Number of warrants 5,844,567 8,224,112 8,374,112 8,374,112
$1.35 [Member]        
Class of Warrant or Right        
Exercise price $ 0.89      
Number of warrants 4,294,167      
Remaining contractual life (years) 1 year 8 months 12 days      
Expiry Jun. 24, 2018      
$0.91 [Member]        
Class of Warrant or Right        
Exercise price $ 0.93      
Number of warrants 1,550,400      
Remaining contractual life (years) 1 year 10 months 24 days      
Expiry Aug. 27, 2018      
$0.95 [Member]        
Class of Warrant or Right        
Exercise price $ 0.90      
Number of warrants 5,844,567      
Remaining contractual life (years) 1 year 3 months 18 days