Annual report pursuant to Section 13 and 15(d)

Note 14 - Income Taxes - Net Loss (Details)

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Note 14 - Income Taxes - Net Loss (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Notes To Financial Statements [Abstract]                    
Loss attributed to US foreign operations                 $ (36,615) $ (52,447)
Loss attributed to Canadian operations                 (5,208) (12,907)
Loss before income taxes $ (10,000) $ (9,777) $ (10,565) $ (11,481) $ (24,324) $ (11,333) $ (13,470) $ (16,227) $ (41,823) $ (65,354)