Stock-based Compensation and Equity Grants - Narrative (Details) - shares	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration term of options	10 years
Number of shares available for grant (in shares)	1,200,000
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stocks vested in period (in shares)	122,897
Restricted Stock Units | Non-employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stocks vested in period (in shares)	67,615	61,525
2016 Omnibus Equity Incentive Plan | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration term of options	10 years