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Note 5 - Inventories - Inventories (Details) - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Raw materials $ 10,339,000 $ 10,948,000
Work in process 3,466,000 2,934,000
Finished goods 8,556,000 8,851,000
Inventory, Net $ 22,361,000 $ 22,733,000