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Note 7 - Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | Year ended December 31, |
|  | 2024 |  |  | 2023 |
Current: |  |  |  |  |  |  |  |
Domestic |  | $ | 50 |  |  | $ | 27 |
Foreign |  |  | 610 |  |  |  | 623 |
|  |  | 660 |  |  |  | 650 |
Deferred: |  |  |  |  |  |  |  |
Domestic |  |  | 1,371 |  |  |  | 1,466 |
Foreign |  |  | (139 | ) |  |  | (165 | )
|  |  | 1,232 |  |  |  | 1,301 |
Total income tax provision |  | $ | 1,892 |  |  | $ | 1,951 |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | December 31, |
|  | 2024 |  |  | 2023 |
Deferred tax assets: |  |  |  |  |  |  |  |
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 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
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 |
Schedule of Net Deferred Tax Liabilities [Table Text Block] |
|  | December 31, |
|  | 2024 |  |  | 2023 |
Deferred tax assets, net |  | $ | 8,413 |  |  | $ | 10,567 |
Deferred tax liabilities |  |  | (1,443 | ) |  |  | (1,714 | )
|  | $ | 6,970 |  |  | $ | 8,853 |
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
|  | Year ended December 31, |
|  | 2024 |  |  | 2023 |
United States |  | $ | 7,044 |  |  | $ | 7,294 |
Foreign |  |  | 1,257 |  |  |  | 1,823 |
|  | $ | 8,301 |  |  | $ | 9,117 |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | Year ended December 31, |
|  | 2024 |  |  | 2023 |
Statutory income tax rate |  |  | 21.0 | % |  |  | 21.0 | %
Increase (decrease) in tax provision resulting from: |  |  |  |  |  |  |  |
Equity compensation |  |  | 0.5 |  |  |  | 0.4 |
Global intangible low-taxed income |  |  | 0.7 |  |  |  | 1.4 |
China R&D deduction |  |  | (1.1 | ) |  |  | (1.0 | )
Income tax credits |  |  | (3.6 | ) |  |  | (3.3 | )
Tax rate changes |  |  | (0.1 | ) |  |  | - |
Foreign exchange loss |  |  | 0.8 |  |  |  | - |
Foreign tax rates |  |  | 2.3 |  |  |  | 1.7 |
States taxes |  |  | 1.1 |  |  |  | 0.8 |
Transaction costs |  |  | 0.7 |  |  |  | - |
Other |  |  | 0.5 |  |  |  | 0.4 |
Effective income tax rate |  |  | 22.8 | % |  |  | 21.4 | %

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