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Inventory
6 Months Ended
Mar. 31, 2024
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
9. INVENTORY

     
Inventories consist of the following components:
March 31,September 30,
20242023
Raw materials$14,635 $14,334 
Work in process10,296 12,939 
Finished goods4,933 3,399 
Parts and supplies74,748 64,983 
Total inventories$104,612 $95,655