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Note 15 - Restricted Net Assets (Details Textual) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2026 | Dec. 31, 2025
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries | $ 13,100 | $ 13,110
Withholding Tax Rate Pursuant To EIT Law | 10.00% |
WFOE [Member] |  |
Minimum Percentage of Annual After-tax Profit For General Reserve | 10.00% |
Minimum Required Reserve As Percent Of Registered Capital | 50.00% |
Domestic Enterprise [Member] |  |
Minimum Percentage of Annual After-tax Profit For General Reserve | 10.00% |

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