Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
6 Months Ended
Aug. 31, 2020
Aug. 31, 2019
Cash Flows from Operating Activities    
Net loss $ (8,980,438) $ (6,896,593)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization (Notes 5 and 6) 558,561 365,739
Stock-based compensation expense (Note 13) 1,877,754 1,734,018
Accrued interest (Note 10) 19,291 215,433
Loss on revaluation of warrants (Note 16) 0 8,483
Debt accretion (Note 16) 17,658 1,035,888
Deferred financing costs (Note 16) 0 66,327
Loss (gain) on conversion of convertible notes (Note 16) 0 (232,565)
Loss on revaluation of foreign exchange contracts 11,482 0
Changes in operating assets and liabilities:    
Sales tax, tax credits and other receivables (Note 3) 169,018 (123,194)
Prepaid expenses (Note 4) (824,675) (22,987)
Accounts payable and accrued liabilities (Note 8) (304,438) (1,385,978)
Net cash used in operating activities (7,455,787) (5,235,429)
Cash Flows from Investing Activities    
Investment in a joint venture (Note 9) (650,000) (500,000)
Deposits on machinery and equipment (1,305,010) 0
Additions to property, plant and equipment (Note 5) (1,116,744) (1,202,766)
Additions to intangible assets (Note 6) (160,484) (82,432)
Net cash used in investing activities (3,232,238) (1,785,198)
Cash Flows from Financing Activities    
Proceeds from sale of common shares (Note 12) 0 40,273,751
Share issuance costs (Note 12) 0 (1,106,370)
Repayment of long-term debt (Note 10) (26,836) (26,326)
Net cash provided from (used in) financing activities (26,836) 39,141,055
Effect of exchange rate changes 125,433 (22,778)
Net change in cash and cash equivalents (10,589,428) 32,097,650
Cash and cash equivalents, beginning of period 33,717,671 5,833,390
Cash and cash equivalents, end of period 23,128,243 37,931,040
Supplemental Disclosure of Cash Flow Information:    
Income tax paid 0 0
Interest paid 19,441 30,497
Interest received $ 30,497 $ 192,291