Annual report pursuant to Section 13 and 15(d)

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

v3.3.1.900
Shareholders' Equity and Capital Stock - o/s warrants (Details) - $ / shares
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 19, 2013
Dec. 31, 2012
Class of Warrant or Right          
Exercise price $ 1.00 $ 1.20 $ 0.92 $ 1.35 $ 0.82
Number of warrants 8,224,112 8,374,112 8,374,112   150,000
$0.93 [Member]          
Class of Warrant or Right          
Exercise price $ 0.93        
Number of warrants 25,000        
Remaining contractual life (years) 2 months 12 days        
Expiry Mar. 05, 2016        
$1.35 [Member]          
Class of Warrant or Right          
Exercise price $ 1.35        
Number of warrants 2,354,545        
Remaining contractual life (years) 1 year        
Expiry Dec. 19, 2016        
$1.12 [Member]          
Class of Warrant or Right          
Exercise price $ 1.12        
Number of warrants 4,294,167        
Remaining contractual life (years) 2 years 6 months        
Expiry Jun. 24, 2018        
$1.17 [Member]          
Class of Warrant or Right          
Exercise price $ 1.17        
Number of warrants 1,550,400        
Remaining contractual life (years) 2 years 8 months 12 days        
Expiry Aug. 27, 2018        
$1.00 [Member]          
Class of Warrant or Right          
Exercise price $ 1.00        
Number of warrants 8,224,112        
Remaining contractual life (years) 2 years 1 month 6 days