Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Income Tax Disclosure [Line Items]
valuation allowances reversed during the period	$ 1,800
State credits that are expected to expire unutilized	710
Unrecognized tax benefits that would impact effective tax rate	323
U.S.
Income Tax Disclosure [Line Items]
Operating Loss Carryforwards		$ 162
Tax Credit Carryforwards		884
State
Income Tax Disclosure [Line Items]
Operating Loss Carryforwards	12	3,700
Tax Credit Carryforwards	1,100
Unlimited carryover	55
U.K.
Income Tax Disclosure [Line Items]
Operating Loss Carryforwards	15,500
Undistributed Earnings of Foreign Subsidiaries	$ 4,800	$ 6,100