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Note 6 - Inventories
12 Months Ended
Sep. 30, 2019
Notes to Financial Statements  
Inventory Disclosure [Text Block]
6
. INVENTORIES
 
Inventories consisted of the following:
 
   
September 30, 
 
   
2019
   
2018
 
Raw materials
  $
5,060,331
    $
4,487,273
 
Finished goods
   
998,607
     
1,768,544
 
Work in process
   
306,809
     
875,417
 
Inventories, gross
   
6,365,747
     
7,131,234
 
Reserve for obsolescence
   
(530,584
)    
(397,051
)
Inventories, net
  $
5,835,163
    $
6,734,183
 
 
The Company relies on
one
supplier for compression drivers for its LRAD products and is making efforts to obtain alternative suppliers to reduce such reliance. The Company’s ability to manufacture its LRAD products could be adversely affected if it were to lose this sole source supplier and was unable to find an alternative supplier.