Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
6 Months Ended
Aug. 31, 2019
Aug. 31, 2018
Cash Flows from Operating Activities    
Net loss $ (6,896,593) $ (7,067,940)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 365,739 211,658
Stock-based compensation expense 1,734,018 2,191,139
Accrued interest 215,433 0
Loss on revaluation of warrants 8,483 0
Debt accretion 1,035,888 0
Deferred financing costs 66,327 0
Gain on conversion of convertible notes (232,565) 0
Changes in operating assets and liabilities:    
Sales tax and tax credits receivable (123,194) 47,725
Prepaid expenses (22,987) 359,072
Accounts payable and accrued liabilities (1,385,978) 349,723
Net cash used in operating activities (5,235,429) (3,908,623)
Cash Flows from Investing Activities    
Investment in joint venture (500,000) 0
Additions to property, plant and equipment (1,202,766) (1,038,775)
Additions to intangible assets (82,432) (66,195)
Net cash used in investing activities (1,785,198) (1,104,970)
Cash Flows from Financing Activities    
Proceeds from sale of common shares 40,273,751 0
Share issuance costs (1,106,370) 0
Repayment of long-term debt (26,326) (26,808)
Net cash provided from (used in) financing activities 39,141,055 (26,808)
Effect of exchange rate changes (22,778) (191,846)
Net change in cash 32,097,650 (5,232,247)
Cash, beginning of period 5,833,390 8,149,713
Cash, end of period 37,931,040 2,917,466
Supplemental Disclosure of Cash Flow Information:    
Income tax paid 0 0
Interest paid $ 30,497 $ 26,234