Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Accrued Expenses and Other Current Liabilities - Accrued Expenses and Other Current Liabilities (Details)

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Note 3 - Accrued Expenses and Other Current Liabilities - Accrued Expenses and Other Current Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Accrued research and development $ 1,299 $ 907
Accrued payroll and bonuses 810 426
Accrued legal, regulatory, professional and other 324 262
Accrued related party 95 78
Total accrued expenses and other current liabilities 2,650 1,791
Accounts Payable and Accrued Liabilities [Member]    
Operating lease liability - current $ 122 $ 118