Leases - Supplemental Balance Sheet Information Schedule (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
ASSETS
Property, plant and equipment, net	$ 202	$ 34
Operating lease right-of-use assets, net	15,167	15,943
Total lease assets	15,369	15,977
Current liabilities:
Current maturities of long-term debt	61	17
Short-term operating lease liabilities	792	788
Non-current liabilities:
Long-term debt, net of current maturities	131	5
Long-term operating lease liabilities, net of short-term	14,786	15,439
Total lease liabilities	$ 15,770	$ 16,249
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property, plant and equipment, net	Property, plant and equipment, net
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current maturities of long-term debt	Current maturities of long-term debt
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Total long-term debt	Total long-term debt