Income Taxes - Schedule of Income Taxes from Continuing Operations Before Income Tax Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Current income tax provision (benefit):
U.S. federal	$ (19)	$ (64)
U.S. state and local	5	(11)
Non-U.S.	472	951
Total current tax provision (benefit)	458	876
Deferred income tax provision (benefit):
U.S. federal	(462)	147
U.S. state and local	(30)	5
Non-U.S.	(327)	41
Total deferred tax provision	(819)	193
Income tax provision (benefit)	$ (361)	$ 1,069