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Note 3 - Inventories, Net - Schedule of Inventory (Details) - USD ($) | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Raw materials | $ 3,750,776 | $ 3,788,631
Work in process | 720,659 | 820,398
Finished goods | 1,720,849 | 1,522,861
Gross inventories | 6,192,284 | 6,131,890
Less: Provision for obsolescence | (473,176) | (469,506)
Inventories, net | $ 5,719,108 | $ 5,662,384

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