Inventory (Tables)

6 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Schedule Of Inventory Current [Table Text Block]

	March 31,		September 30,
	2016		2015
Raw materials	$	1,429	$	1,641
Work in process		3,271		2,641
Finished goods		970		1,199
Parts and supplies		6,991		8,496
Total inventories	$	12,661	$	13,977