Note 7 - Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Intangible assets, gross	$ 965	$ 965
Intangible assets, accumulated amortization	695	585
Intangible assets, net	$ 270	380
Customer Relationships [Member]
Intangible assets, useful life (Year)	15 years
Intangible assets, gross	$ 930	930
Intangible assets, accumulated amortization	668	564
Intangible assets, net	$ 262	366
Trademarks [Member]
Intangible assets, useful life (Year)	10 years
Intangible assets, gross	$ 13	13
Intangible assets, accumulated amortization	6	5
Intangible assets, net	$ 7	8
Noncompete Agreements [Member]
Intangible assets, useful life (Year)	5 years
Intangible assets, gross	$ 22	22
Intangible assets, accumulated amortization	21	16
Intangible assets, net	$ 1	$ 6