Stock-Based Compensation - Schedule of Activity Related to Performance Shares (Details) - $ / shares shares in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Number of Shares
Outstanding at beginning of period (in shares)	305	406
Shares forfeited (in shares)	(70)	(142)
Outstanding at end of period (in shares)	233	305
Weighted Average Fair Value at Date of Grant
Outstanding at beginning of period, Weighted Average Fair Value at Date of Grant (in dollars per share)	$ 4.75	$ 4.05
Shares forfeited, Weighted Average Fair Value at Date of Grant (in dollars per share)	3.67	4.73
Outstanding at end of period, Weighted Average Fair Value at Date of Grant (in dollars per share)	$ 4.65	$ 4.75
Restricted shares
Number of Shares
Shares awarded (in shares)	97	72
Shares earned (in shares)	(126)	(75)
Weighted Average Fair Value at Date of Grant
Shares awarded, Weighted Average Fair Value at Date of Grant (in dollars per share)	$ 3.08	$ 7.18
Shares earned, Weighted Average Fair Value at Date of Grant (in dollars per share)	$ 3.85	$ 6.47
Performance shares
Number of Shares
Shares awarded (in shares)	27	44
Weighted Average Fair Value at Date of Grant
Shares awarded, Weighted Average Fair Value at Date of Grant (in dollars per share)	$ 2.84	$ 8.00