Quarterly report pursuant to Section 13 or 15(d)

Note 13 - Income Taxes (Details Textual)

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Note 13 - Income Taxes (Details Textual) - USD ($)
xbrli-pure in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Income Tax Expense (Benefit), Total $ 0 $ 0
Effective Income Tax Rate Reconciliation, Percent, Total 0.00% 0.00%