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Inventory
3 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Inventory Disclosure

10. INVENTORY

 

Inventories consist of the following components:

December 31,September 30,
20172017
Raw materials$3,382$4,104
Work in process4,4293,731
Finished goods1,5301,692
Parts and supplies7,6657,396
Total inventories$17,006$16,923