Note 2 - Fair Value Measurements - Summary of Changes in Fair Value of Level 3 Financial Instruments (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2025 USD ($)
Balance	$ 26
Additions	5,211
Change in fair value included in other income (expense), net	2,123
Payments and conversions	(3,474)
Extinguishment and exercise	(2,992)
Balance	894
The 2025 Note [Member]
Balance	0
Additions	3,266
Change in fair value included in other income (expense), net	314
Payments and conversions	(3,474)
Extinguishment and exercise	0
Balance	106
Warrant Liability [Member]
Balance	26
Additions	1,945
Change in fair value included in other income (expense), net	1,809
Payments and conversions	0
Extinguishment and exercise	(2,992)
Balance	$ 788