Note 8 - Contract Assets and Liabilities 1 (Details Textual) - USD ($)	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Mar. 31, 2020
Contract with Customer, Receivable, after Allowance for Credit Loss	$ 1,500,000		$ 4,300,000
Contract with Customer, Liability	0		$ 3,200,000
License [Member]
Contract with Customer, Liability, Noncurrent				$ 2,000,000
Contract with Customer, Liability, Revenue Recognized	$ 100,000	$ 100,000