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Note 16 - The Financing and Warrant Liabilities - Allocation of Gross Proceeds From the Financing (Details) - Private Placement [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 14, 2020
Dec. 31, 2020
Investor warrants   $ 1,746
Common Stock (par value and additional paid-in capital)   5,254
Total proceeds from the 2020 Financing $ 7,000 $ 7,000