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Note 12 - Income Taxes - Income (Loss) from Continuing Operations Before Income Taxes (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
U.S. $ (14,321) $ (6,012)  
Foreign (4,385) (2,478)  
Loss before income taxes $ (18,706) $ (8,490) $ (23,555)