Note 3 - Supplemental Balance Sheet Information - Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Intangible assets	$ 1,770	$ 4,781
Less accumulated amortization	(929)	(3,601)
Total	841	1,180
Customer Contracts And Lists [Member]
Intangible assets	0	3,011
Trade Names [Member]
Intangible assets	900	900
Patents [Member]
Intangible assets	$ 870	$ 870