Income and Other Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income tax expense (benefit) computed at U.S. federal statutory rate	$ (5,139)	$ 5,506
State tax expense (benefit), net of U.S. federal effect	(27)	990
Foreign tax rate differential	(73)	24
Effect due to change in tax rate	0	0
Shortfall from stock based compensation	141	(122)
Other	84	103
Federal benefit on PPP loan forgiveness	0	(1,363)
Change in uncertain tax positions	0	(419)
Net operating loss carryforward expiration	11,924	454
Change in valuation allowance	(7,049)	(4,601)
Total income tax (benefit) expense	$ (139)	$ 572
Effective tax rate (percentage)	(0.60%)	2.20%