Annual report pursuant to Section 13 and 15(d)

Note 15 - Income Taxes - Provision for Income Taxes (Details)

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Note 15 - Income Taxes - Provision for Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Notes To Financial Statements [Abstract]                    
Net loss $ (11,955) $ (11,447) $ (14,129) $ (13,676) $ (10,000) $ (9,777) $ (10,565) $ (11,481) $ (51,207) $ (41,823)
Statutory Canadian corporate tax rate                 26.50% 26.50%
Computed expected tax recovery                 $ (13,570) $ (11,083)
Non-deductible permanent differences                 873 1,376
Change in valuation allowance                 13,059 10,821
Foreign tax rate differential                 (677) (466)
Prior year true-up adjustments                 355 (703)
Other                 $ (40) $ 55