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Note 8 - Income Taxes - Schedule of Income before Income Tax, Domestic and Foreign (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Domestic $ (27,317) $ (597) $ (3,198)
Foreign (436) 0 0
Total $ (27,753) $ (597) $ (3,198)