Note 6 - Intangible Assets and Goodwill - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Amortizable intangible assets, gross	$ 3,099	$ 3,033
Accumulated amortization	(912)	(806)
Total amortizable	2,187	2,227
Indefinite life assets (non-amortizable)	421	421
Total intangible assets, net	2,608	2,648
Patents [Member]
Amortizable intangible assets, gross	931	873
Trademarks [Member]
Amortizable intangible assets, gross	256	248
Computer Software, Intangible Asset [Member]
Amortizable intangible assets, gross	1,752	1,752
Customer Relationships [Member]
Amortizable intangible assets, gross	$ 160	$ 160