Note 10 - Balance Sheet Components (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	June 30,
	2023		2022
Payroll and related	$	1,449	$	1,307
Clinical		3,721		8,777
Sublease prepayment		233		228
Other		150		190
Total	$	5,553	$	10,502