Income Taxes (Deferred Tax Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Non-current deferred tax asset	$ 439	$ 389
Non-current deferred tax liability	(13,493)	(17,171)
Net deferred tax liability	(13,054)	(16,782)
Depreciation and amortization	(1,399)	(1,037)
Lease asset	(3,683)	(3,415)
Lease liability	4,941	4,477
Inventories	755	979
Compensation costs	4,064	3,698
Other accruals	6,387	3,985
Tax credit carryforwards	3,026	6,021
Valuation allowance	(2,186)	(4,372)
Identifiable intangible assets	$ (24,959)	$ (27,118)

Deferred Tax Assets, Tax Deferred Expense, Other Accruals

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred rent.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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