Employee Retirement Plans - (Narrative) (Details) - USD ($)	12 Months Ended
Sep. 30, 2025	Sep. 30, 2024
Retirement Benefits [Abstract]
Defined contribution plan, employer discretionary contribution amount	$ 76,000	$ 106,000

Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration