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INVENTORIES (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Inventory Disclosure [Abstract]    
Raw materials, parts and supplies $ 2,026,839 $ 541,816
Work-in-progress 483,706 685,410
Finished products 750,581 765,639
Total inventories $ 3,261,126 $ 1,992,865