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Additional Cash Flow Disclosures - Other Cash Flow Disclosures (Details) - CAD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Statement of cash flows [abstract]      
Cash interest received $ 130,101 $ 163,902 $ 197,859
Cash taxes paid $ 136,163 $ 4,468 $ 3,421