Note 4 - Supplemental Balance Sheet Information - Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Amortization of intangible assets	$ 1,518	$ 1,032
Research and Development Expense [Member]
Amortization of intangible assets	1,395	929
Selling, General and Administrative Expenses [Member]
Amortization of intangible assets	$ 123	$ 103