Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Property and Equipment, Net (Details Textual)

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Note 7 - Property and Equipment, Net (Details Textual) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Depreciation, Total $ 0.3 $ 0.5 $ 0.5 $ 1.0