Summary of Operations and Significant Accounting Policies - Cash and Cash Equivalents - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Concentration Risk [Line Items]
Percentage of cash balances	66.00%	56.00%
Investment, Type [Extensible Enumeration]	U S Treasuries And F D I C Insured [Member]	U S Treasuries And F D I C Insured [Member]
Amtech's
Concentration Risk [Line Items]
Cash Insured Limits	$ 5.7	$ 6.0