Inventory (Tables)

3 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Schedule Of Inventory Current [Table Text Block]

	December 31,		September 30,
	2016		2016
Raw materials	$	2,662	$	2,538
Work in process		3,336		4,158
Finished goods		1,635		1,558
Parts and supplies		6,581		4,982
Total inventories	$	14,214	$	13,236