XML 89 R69.htm IDEA: XBRL DOCUMENT v3.6.0.2
Income taxes - Expiration of non-capital losses for income tax purposes (Details)
CAD in Thousands
Dec. 31, 2016
CAD
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards CAD 52,556
2026  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 282
2027  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 0
2028  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 0
2029  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 1
2030  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 0
2031  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 563
2032  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 15,998
2033  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 21,729
2034  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 8,317
2036  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards CAD 5,666