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CONSOLIDATED STATEMENTS OF CASH FLOWS - CAD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Operating Activities      
Net loss for the year $ (33,122,888) $ (17,037,225) $ (15,616,851)
Depreciation - property and equipment 122,982 95,375 90,768
Depreciation - right-of-use assets 362,592    
Share based compensation 1,470,153 1,415,833 578,703
Interest expense on lease liabilities 94,817 0 0
Unrealized foreign exchange gain 353,189 (374,337) (124,793)
Onerous lease contract 0 67,588 0
Amortization - lease incentive liability 0 8,189 0
Change in fair value of warrant derivative 12,608,808 0 0
Net change in non-cash working capital (1,795,777) 3,904,339 180,855
Cash used in operating activities (19,906,124) (11,920,238) (14,891,318)
Investing Activities      
Acquisition of property and equipment (10,905) (107,466) (105,765)
Redemption of short-term investments 0 0 2,088,800
Cash (used in) provided by investing activities (10,905) (107,466) 1,983,035
Financing Activities      
Proceeds from exercise of stock options 0 123,538 343,440
Payment of lease liabilities (447,497)    
Cash provided by financing activities 21,015,596 13,299,136 12,812,704
Increase (decrease) in cash 1,098,567 1,271,432 (95,579)
Cash and cash equivalents, beginning of year 13,699,881 11,836,119 12,034,282
Impact of foreign exchange on cash and cash equivalents (650,427) 592,330 (102,584)
Cash and cash equivalents, end of year 14,148,021 13,699,881 11,836,119
Warrants      
Financing Activities      
Proceeds from share issuance 3,465,867 1,417 0
Common Stock Purchase Agreement      
Financing Activities      
Proceeds from share issuance 5,360,247 2,533,980 0
At-the-market agreement      
Financing Activities      
Proceeds from share issuance 8,131,620 451,675 2,103,166
Public offering      
Financing Activities      
Proceeds from share issuance $ 4,505,359 $ 10,188,526 $ 10,366,098