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Inventories
3 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
Note 4 - Inventories
 
Inventories, net of reserves, consists of the following:
 
  
December 31,
  
September 30,
 
  
2018
  
2018
 
Raw Materials $2,458,000  $2,362,000 
Work-in-Process  1,090,000   890,000 
Finished Goods  944,000   854,000 
  $4,492,000  $4,106,000