Note 8 - Income Taxes - Summary of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Federal	$ 0	$ 0
State	13	(10)
Foreign	39	37
Total current	52	27
Federal	(64)	(27)
State	(64)	(13)
Foreign	0	0
Total deferred	(128)	(40)
Total income tax benefit	$ (76)	$ (13)