Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
3 Months Ended
May 31, 2021
May 31, 2020
Cash Flows from Operating Activities    
Net loss $ (12,157,364) $ (3,852,714)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization (Notes 5 and 6) 132,001 256,090
Stock-based compensation expense (Note 15) 15,357 1,011,824
Accretion and accrued interest (Note 18) 21,408 17,963
Loss on revaluation of foreign exchange contracts 0 98,502
Changes in operating assets and liabilities:    
Sales tax, tax credits and other receivables (Note 3) 287,116 76,410
Prepaid expenses (Note 4) (1,326,519) (1,865,216)
Accounts payable and accrued liabilities (Note 8) 622,443 (720,759)
Net cash used in operating activities (12,405,558) (4,977,900)
Cash Flows from Investing Activities    
Investment in a joint venture (Note 9) 0 (650,000)
Additions to property, plant and equipment (Note 5) (4,867,007) (394,403)
Additions to intangible assets (Note 6) (52,319) (144,386)
Net cash used in investing activities (4,919,326) (1,188,789)
Cash Flows from Financing Activities    
Repayment of long-term debt (Note 10) (14,496) (12,693)
Net cash provided from (used in) financing activities (14,496) (12,693)
Effect of exchange rate changes 154,491 (29,534)
Net change in cash and cash equivalents (17,184,889) (6,208,916)
Cash and cash equivalents, beginning of period 35,221,951 33,717,671
Cash and cash equivalents, end of period 18,037,062 27,508,755
Supplemental Disclosure of Cash Flow Information:    
Income tax paid 0 0
Interest paid 9,178 10,311
Interest received $ 9,761 $ 40,346