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Income Taxes - Income Tax Benefit from Continuing Operations (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Income Tax Disclosure [Abstract] |  |
Loss before income tax provision (benefit) | $ (8,533) | $ (9,683)
Income tax provision (benefit) at U.S. federal statutory rates | (1,792) | (2,033)
Tax effect of: |  |
Foreign rate differential | (331) | (46)
Permanent items | 83 | (1,032)
State and local income taxes | 5 | 18
Federal tax credits | (179) | (157)
Valuation allowance | 2,363 | 3,198
Other | 10 | 9
Income tax provision (benefit) | $ 159 | $ (43)

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