Computation of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Current
Current Federal	$ 14	$ (4)
Current Foreign	561	2,467
Current State		5
Total current income tax expenses (benefits)	575	2,468
Deferred:
Deferred Foreign	3	181
Total Deferred Income Tax Expense (benefits)	3	181
Income tax expense	$ 578	$ 2,649