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

3 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	March 31, 2022		December 31, 2021
Accrued research and development	$	1,035	$	1,005
Accrued payroll and bonuses		869		606
Accrued legal, regulatory, professional and other		505		442
Accrued liabilities due to related party		124		109
Operating lease liability - current		77		96
Total accrued expenses and other current liabilities	$	2,610	$	2,258