Note 2 - Revenue Recognition (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Contract with Customer, Liability, Current	$ 6,315		$ 6,315		$ 2,792
Minimum [Member]
Contract with Customer, Payment Term (Day)			30 days
Maximum [Member]
Contract with Customer, Payment Term (Day)			90 days
Certain Customers in China [Member]
Contract with Customer, Payment Term Required Prior to Shipping Products (Week)			14 days
Certain Customers in China [Member] | Accrued Liabilities, Current [Member]
Contract with Customer, Liability, Current	$ 6,300		$ 6,300		$ 2,800
Product Concentration Risk [Member] | Revenue Benchmark [Member] | Product [Member]
Concentration Risk, Percentage	99.00%	99.00%	99.00%	99.00%
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Product Sales Through Distribution Arrangements [Member]
Concentration Risk, Percentage	88.00%	77.00%	87.00%	79.00%