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

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	September 30, 2021		December 31, 2020
Accrued research and development	$	1,322	$	907
Accrued legal, regulatory, professional and other		459		262
Accrued payroll and bonuses		350		426
Operating lease liability - current		115		118
Accrued related party		20		78
Total accrued expenses and other current liabilities	$	2,266	$	1,791