Note 3 - Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

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

	As of March 31, 2024
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	2	$	—	$	—	$	2
Cash in savings account		—		—		—		580
Cash in checking account		—		—		—		367
Total cash and cash equivalents	$	2	$	—	$	—	$	949

	As of December 31, 2023
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	2	$	—	$	—	$	2
Cash in savings account		—		—		—		1,072
Cash in checking account		—		—		—		29
Total cash and cash equivalents	$	2	$	—	$	—	$	1,103