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INVENTORIES (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
INVENTORIES    
Raw material $ 2,416,000 $ 2,178,000
Work in process 1,240,000 2,302,000
Finished goods 15,809,000 18,402,000
Inventory net $ 19,465,000 $ 22,882,000