Note 15 - Commitments and Contingencies (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Technology License Royalty	$ 181,000	$ 234,000
Technology Royalty, Price Per Unit Sold	4	0.03
Purchase Obligation	$ 9,324,000
Health Insurance, Stop-loss Provision Threshold		$ 90,000
Health Insurance Plan, Aggregate Stop-loss Amount	$ 2,185,000
Product Warranty Obligation, Term (Year)	2 years	5 years
Accrued Other Expenses And Other Current Liabilities [Member]
Accrued Employee Benefits	$ 336,000	$ 275,000