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Additional Cash Flow Disclosures - Net Change In Non-Cash Working Capital (Details) - CAD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Statement of cash flows [abstract]      
Contract receivable $ 0 $ 4,767,100 $ (4,767,100)
Other receivables (2,017,122) (13,924) 16,680
Prepaid expenses (2,012,605) 475,077 (915,222)
Accounts payable and accrued liabilities 1,347,365 (1,858,170) (384,641)
Contract liability 0 547,707 6,182,580
Other liabilities 807,877 (27,982) 0
Non-cash impact of foreign exchange 78,708 14,531 48,558
Change in non-cash working capital related to operating activities $ (1,795,777) $ 3,904,339 $ 180,855