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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Nov. 30, 2023
Nov. 30, 2022
Nov. 30, 2021
Cash flows from (used in) Operating      
Net loss $ (23,957) $ (47,237) $ (31,725) [1]
Adjustments for      
Depreciation of property and equipment 450 390 237 [1]
Amortization of intangible assets and other asset 2,513 11,652 8,062 [1]
Amortization of right-of-use assets 352 429 449 [1]
Share-based compensation for stock option plan and stock appreciation rights 2,215 3,872 1,932 [1]
Gain on lease termination (121) 0 0 [1]
Change in fair value of derivative financial assets 492 217 (212) [1]
Change in fair value of liability related to deferred stock unit plan (224) (221) 209 [1]
Interest on convertible unsecured senior notes and Loan Facility 8,263 4,357 3,306 [1]
Interest paid on convertible unsecured senior notes and Loan Facility (8,812) (4,634) (3,306) [1]
Interest income (769) (316) (195) [1]
Interest received 865 456 282 [1]
Income tax expense 421 443 63 [1]
Income taxes paid (848) (109) (19) [1]
Foreign exchange 282 1,209 890 [1]
Gain on repurchase of convertible unsecured senior notes 0 (357) 0
Accretion expense and amortization of deferred financing costs 2,098 2,140 2,358 [1]
Change in fair value of Marathon Warrants (1,525)    
Loss on Loan Facility modifications 3,540 0 0
Write off of deferred financing costs 954 0 0
Cash flows from (used in) operations before changes in working capital (13,811) (27,709) (17,669) [1]
Change in operating assets and liabilities      
Trade and other receivables (902) (1,669) 1,852 [1]
Tax credits and grants receivable (215) 126 323 [1]
Inventories 10,327 8,991 (4,217) [1]
Prepaid expenses and deposits 4,511 3,058 (5,569) [1]
Accounts payable and accrued liabilities (7,508) (1,100) 5,549 [1]
Provisions 1,920 3,627 2,226 [1]
Deferred revenue 0 (16) 4 [1]
Increase (decrease) in working capital 8,133 13,017 168 [1]
Total cash used in operating activities (5,678) (14,692) (17,501) [1]
Financing activities      
Repurchase of convertible unsecured senior notes (27,452) (28,746)  
Costs related to repurchase of convertible unsecured senior notes 0 (73)  
Proceeds from issuance of Loan Facility 20,000 40,000  
Costs related to issuance of Loan Facility (700) (2,285)  
Repayment of other obligations 0 0 (5,000) [1]
Proceeds from exercise of Options 0 21 595 [1]
Proceeds from exercise of warrants 0 0 742 [1]
Proceeds from issue of common shares, Public Offering Warrants and subscription receipts 25,160 2,960 46,002 [1]
Costs related to issuance of common shares, Public Offering Warrants and subscription receipts (1,585) (89) (3,394) [1]
Deferred financing costs (196) (1,527) (447) [1]
Payment of lease liability (452) (605) (635) [1]
Total cash from financing activities 14,775 9,656 37,863 [1]
Investing activities      
Acquisition of intangible assets (1,500) 0 (39) [1]
Acquisition of property and equipment (318) (985) (127) [1]
Proceeds from sale of bonds and money market funds 3,030 9,906 640 [1]
Acquisition of bonds and money market funds 0 (239) (13,210) [1]
Acquisition of derivative financial assets (104)    
Total cash from (used in) investing activities 1,108 8,682 (12,736) [1]
Net change in cash 10,205 3,646 7,626 [1]
Cash, beginning of year 23,856 20,399 [1] 12,737 [1]
Effect of foreign exchange on cash 36 (189) 36 [1]
Cash, end of year $ 34,097 $ 23,856 $ 20,399 [1]
[1] The company voluntarily changed its accounting policy to classify interest paid and received as part of operating activities, see Note 1.