Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Accrued Liabilities - Accrued Liabilities (Details)

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Note 7 - Accrued Liabilities - Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Accrued clinical study costs $ 237 $ 13
Accrued research and other professional fees 143 360
Accrued compensation 33 483
Accrued taxes and other liabilities 7 8
Total accrued liabilities $ 420 $ 864