Computation of Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Current
Current Federal	$ (613)	$ 2,422	$ (13,726)
Current Foreign	51	286	148
Current State			6
Total current income tax expenses (benefits)	(562)	2,708	(13,572)
Deferred:
Deferred Federal			2,881
Deferred Foreign	(18)	(25)	1,328
Total Deferred Income Tax Expense (benefits)	(18)	(25)	4,209
Income tax expense	$ (580)	$ 2,683	$ (9,363)