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Inventories
 9 Months Ended
Jun. 30, 2018
Inventory Disclosure [Abstract]  
Inventories

4.Inventories

Inventories consist of the following:

 

 

 

June 30,

2018

 

 

September 30,

2017

 

Finished products

 

$

5,025

 

 

$

8,121

 

Semi-finished products

 

 

7,690

 

 

 

7,171

 

Raw materials and supplies

 

 

8,316

 

 

 

9,662

 

Inventories

 

$

21,031

 

 

$

24,954