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Note 6 - Inventories, Net (Tables)
9 Months Ended
Jun. 30, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

June 30,

  

September 30,

 
  

2022

  

2021

 

Raw materials

 $7,349  $5,449 

Finished goods

  795   842 

Work in process

  1,477   877 

Inventories, gross

  9,621   7,168 

Reserve for obsolescence

  (815)  (752)

Inventories, net

 $8,806  $6,416