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Inventories (Details) - USD ($)
Dec. 31, 2018
Sep. 30, 2018
Inventory Current [Line Items]    
Raw Materials $ 2,458,000 $ 2,362,000
Work-in-Process 1,090,000 890,000
Finished Goods 944,000 854,000
Inventory, Net, Total $ 4,492,000 $ 4,106,000