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Schedule of Inventories (Details) - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Inventory Disclosure [Abstract]    
Raw materials $ 1,225,000 $ 1,156,000
Work in process 2,501,000 2,511,000
Finished goods 3,894,000 4,124,000
Total inventories $ 7,710,000 $ 7,791,000