Computation of Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Current
Current Federal	$ (4)	$ (16)
Current Foreign	2,467	2,401
Current State	5	16
Total current income tax expenses (benefits)	2,468	2,401
Deferred:
Deferred Foreign	181	16
Total Deferred Income Tax Expense (benefits)	181	16
Income tax expense	$ 2,649	$ 2,417