XML 64 R42.htm IDEA: XBRL DOCUMENT v3.7.0.1
Concentrations of Market Risk (Details)
CAD in Thousands
12 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2016
CAD
Dec. 31, 2015
USD ($)
Dec. 31, 2015
CAD
Interest Rate Risk [Member]        
Concentration Risk [Line Items]        
Cash and cash equivalents and marketable securities $ 64,146,000      
Interest rate risk, description The Company does not enter into investments for trading or speculative purposes and has not used any derivative financial instruments to manage interest rate exposure. A 10% change in interest rates during any of the periods presented would not have had a material impact on the Company’s consolidated financial statements.      
Outstanding debt $ 0      
Foreign Currency Exchange Risk [Member]        
Concentration Risk [Line Items]        
Cash and cash equivalents and marketable securities $ 35,859,000 CAD 37,980 $ 17,836,000 CAD 56,491