Percentage of estimated annualized effective income tax rate.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset from release of valuation allowance.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards.

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Taxes
Income tax (benefit) expense	$ (1,692)	$ 11	$ (1,488)	$ 28
Estimated annualized effective income tax rate			21.99%
Effective Income Tax Rate, Continuing Operations	(205.80%)		(64.50%)
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Release Of Allowances Amount			$ 1,800
State credits that are expected to expire unutilized	$ 731		731
Federal
Income Taxes
Research and development credits	117		117
State
Income Taxes
Research and development credits	$ 118		$ 118