Annual report pursuant to Section 13 and 15(d)

Note 8 - Financial Instruments and Risks - Impact of Exchange Rates (Details)

v3.8.0.1
Note 8 - Financial Instruments and Risks - Impact of Exchange Rates (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2017
USD ($)
10% Increase to CAD and PESO Foreign Exchange Rates [Member]  
Effect on cost of sales, change in exchange rates $ 0.7
10% Decrease to CAD and PESO Foreign Exchange Rates [Member]  
Effect on cost of sales, change in exchange rates $ (0.9)