Note 4 - Supplemental Balance Sheet Information - Amortization of Intangible Assets 2 (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Amortization of intangible assets	$ 268	$ 410	$ 535	$ 815
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense
Amortization of intangible assets	5	32	10	61
Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense
Amortization of intangible assets	$ 263	$ 378	$ 525	$ 754

Amount of amortization expense for finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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+ Details