Debt - Schedule of Foreign Subsidiary Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Line of Credit Facility [Line Items]
Less – current maturities	$ (4,259)	$ (9,566)
Total long-term debt	3,266	2,669
Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	6,809	6,632
Less – current maturities	(4,012)	(4,551)
Total long-term debt	2,797	2,081
Receivables pledged as collateral	594	485
Term loan | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	3,545	3,127
Short-term borrowings | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	2,553	1,867
Factor | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	$ 711	$ 1,638