Note 3 - Fair Value Measurement (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	As of September 30, 2023
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	2	$	—	$	—	$	2
Cash in savings account		—		—		—		1,610
Cash in checking account		—		—		—		223
Total cash and cash equivalents	$	2	$	—	$	—	$	1,835

	As of December 31, 2022
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	6,893	$	—	$	—	$	6,893
Cash in checking account		—		—		—		470
Total cash and cash equivalents	$	6,893	$	—	$	—	$	7,363