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Inventory, net (Details) - USD ($)
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Inventory, net.      
Raw materials $ 1,542,000   $ 1,683,000
Work-in-Process 105,000   388,000
Finished goods 663,000   495,000
Total inventory 2,310,000   $ 2,566,000
Obsolete and expired inventory expensed $ 200 $ 200