Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	May 09, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Benefit from employee retention credit		$ 1,772
Proceeds from employee retention credit refund	$ 1,246	1,688
Employee retention credit interest income		84
Employee retention credit manufacturing credit		1,452
Employee retention credit costs		236
Employee retention credit professional fees		354		$ 354
Employee retention credit receivable		$ 526		526
Revision of Prior Period, Reclassification, Adjustment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Adjustments to reconcile net loss				$ 332
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted and performance shares (in shares)		0	0	0	0
Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted and performance shares (in shares)		0	0	0	0