Debt - Foreign Subsidiary Borrowings (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
Line of Credit Facility [Line Items]
Less – current maturities	$ (4,379)	$ (9,566)
Total long-term debt	3,508	2,669
Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	7,101	6,632
Less – current maturities	(4,078)	(4,551)
Total long-term debt	3,023	2,081
Receivables pledged as collateral	792	485
Foreign subsidiary borrowings | Term loan
Line of Credit Facility [Line Items]
Total debt	3,818	3,127
Foreign subsidiary borrowings | Short-term borrowings
Line of Credit Facility [Line Items]
Total debt	2,289	1,867
Foreign subsidiary borrowings | Factor
Line of Credit Facility [Line Items]
Total debt	$ 994	$ 1,638