Stock-Based Compensation - Schedule of Stock Options Activity (Details) - $ / shares	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Shares
Granted (in shares)	1,692
Employee Stock Option
Shares
Outstanding at beginning of period (in shares)	11,150	13,575	27,507
Granted (in shares)	1,692	50	100
Exercised (in shares)	(11,000)	(2,475)	(13,796)
Forfeited (in shares)	(200)	0	(236)
Outstanding at end of period (in shares)	1,642	11,150	13,575
Exercisable at end of period (in shares)	100	11,000	13,475
Weighted- Average Exercise Price
Outstanding at beginning or period (in dollars per share)	$ 10.04	$ 9.61	$ 14.31
Granted (in dollars per share)	22.38	27.73	27.98
Exercised (in dollars per share)	9.79	8.08	19.00
Forfeited (in dollars per share)	20.27	0	16.58
Outstanding at end of period (in dollars per share)	23.14	10.04	9.61
Exercisable at end of period (in dollars per share)	$ 27.98	$ 9.79	$ 9.48