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Note 6 - Inventories, Net (Tables)
6 Months Ended
Mar. 31, 2023
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

March 31,

   

September 30,

 
   

2023

   

2022

 

Raw materials

  $ 7,229     $ 5,277  

Finished goods

    867       844  

Work in process

    2,063       744  

Inventories, gross

    10,159       6,865  

Reserve for obsolescence

    (772 )     (857 )

Inventories, net

  $ 9,387     $ 6,008