Major Customers and Foreign Sales - Schedule of Revenues by Geographic Region (Details) - Net Revenues - Geographic Concentration Risk	9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Revenue, Major Customer [Line Items]
Concentration risk, percentage	100.00%	100.00%
United States
Revenue, Major Customer [Line Items]
Concentration risk, percentage	40.00%	34.00%
Canada
Revenue, Major Customer [Line Items]
Concentration risk, percentage	1.00%	8.00%
Mexico
Revenue, Major Customer [Line Items]
Concentration risk, percentage	1.00%	2.00%
Other North America
Revenue, Major Customer [Line Items]
Concentration risk, percentage		1.00%
Total Americas
Revenue, Major Customer [Line Items]
Concentration risk, percentage	42.00%	45.00%
China
Revenue, Major Customer [Line Items]
Concentration risk, percentage	20.00%	15.00%
Malaysia
Revenue, Major Customer [Line Items]
Concentration risk, percentage	11.00%	7.00%
Taiwan
Revenue, Major Customer [Line Items]
Concentration risk, percentage	6.00%	6.00%
Other Asia
Revenue, Major Customer [Line Items]
Concentration risk, percentage	4.00%	7.00%
Total Asia
Revenue, Major Customer [Line Items]
Concentration risk, percentage	41.00%	35.00%
Germany
Revenue, Major Customer [Line Items]
Concentration risk, percentage	7.00%	2.00%
Austria
Revenue, Major Customer [Line Items]
Concentration risk, percentage	1.00%	5.00%
Czech Republic
Revenue, Major Customer [Line Items]
Concentration risk, percentage	3.00%	4.00%
Other Europe
Revenue, Major Customer [Line Items]
Concentration risk, percentage	6.00%	9.00%
Total Europe
Revenue, Major Customer [Line Items]
Concentration risk, percentage	17.00%	20.00%