Note 3 - Supplemental Balance Sheet Information (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2011
Depreciation, Amortization and Accretion, Net	$ 1,600	$ 2,000
Goodwill	856	1,382	$ 1,238	$ 1,238
Mexico Business Member]
Goodwill					$ 3,000
Capitalized Software Costs [Member]
Capitalized Computer Software, Gross	1,000	1,000
Capitalized Computer Software, Amortization	1,300	1,100
Customer Contracts And Lists [Member]
Amortization of Intangible Assets	$ 200	$ 400
Customer Contracts And Lists [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	5 years
Customer Contracts And Lists [Member] | Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	25 years