Income Taxes - Schedule of Income Taxes from Continuing Operations Before Income Tax Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Current income tax provision (benefit):
U.S. federal	$ (64)	$ (2,687)
U.S. state and local	(11)	(111)
Non-U.S.	951	94
Total current tax provision (benefit)	876	(2,704)
Deferred income tax provision (benefit):
U.S. federal	147	1,481
U.S. state and local	5	69
Non-U.S.	41	(844)
Total deferred tax provision	193	706
Income tax provision (benefit)	$ 1,069	$ (1,998)