XML 37 R25.htm IDEA: XBRL DOCUMENT v3.20.4
Inventory (Tables)
3 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories consist of the following components:

December 31,September 30,
20202020
Raw materials$3,763 $3,232 
Work in process6,255 4,894 
Finished goods1,366 1,186 
Parts and supplies21,914 15,577 
Total inventories$33,298 $24,889