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Note 7 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Net operating loss carryforwards | $ 5,817 | $ 8,515
Research and development | 4,894 | 3,536
Tax credit carryforwards | 3,180 | 2,898
Inventory reserves | 2,859 | 1,794
Intangible assets | 1,678 | 1,596
Accrued expenses and other | 1,539 | 1,115
Total deferred tax assets | 19,964 | 19,454
Valuation allowance for deferred tax assets | (2,404) | (2,441)
Net deferred tax assets | 17,563 | 17,013
Intangible assets | (9,480) | (8,095)
Property, plant and equipment | (1,113) | (65)
Total deferred tax liabilities | (10,593) | (8,160)
Net deferred tax assets | $ 6,970 | $ 8,853

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