Note 7 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Net operating loss carryforwards	$ 4,809	$ 5,817
Research and development	5,448	4,894
Tax credit carryforwards	3,448	3,180
Inventory reserves	2,991	2,859
Intangible assets	610	1,678
Lease Liability	728	905
Accrued expenses and other	1,318	1,542
Total deferred tax assets	19,352	20,875
Valuation allowance for deferred tax assets	(2,530)	(2,404)
Net deferred tax assets	16,822	18,471
Intangible assets	(5,619)	(9,480)
Property, plant and equipment	(980)	(1,113)
Right of use asset	(729)	(908)
Total deferred tax liabilities	(7,328)	(11,501)
Net deferred tax assets	$ 9,494	$ 6,970