Supporting Financial Information - Accounts Payable, Accrued Expense and Other Current Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Document Fiscal Year Focus	2017
Accounts payable	$ 5,174	$ 4,324
Accrued benefits	1,164	1,197
Accrued bonus and incentive compensation	0	508
Accrued workers compensation insurance	610	981
Other accrued expenses	0	126
Total accrued expenses and other current liabilities	$ 6,948	$ 7,136