Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (7,170)	$ (14,209)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment, net of tax $0 and $0, respectively	(348)	1,016
Retirement plan liability adjustment, net of tax $0 and $0, respectively	974	2,549
Interest rate swap agreement adjustment, net of tax $0 and $0, respectively	(4)	34
Comprehensive loss	$ (6,548)	$ (10,610)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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