Note 17 - Revenue (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Year ended December 31,
	2024		2023
Revenue by primary geographical market:
United States	$	154	$	1,223
Europe		48		184
Asia-Pacific		—		57
Total	$	202	$	1,464
Revenue by timing of recognition:
Recognized at a point in time	$	97	$	477
Recognized over time		105		987
Total	$	202	$	1,464

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

	Year ended December 31,
	2024		2023
Beginning balance	$	—	$	987
Revenue recognized that was included in the contract liabilities beginning balance		—		(987	)
Ending balance	$	—	$	—