Debt - Schedule of Foreign Subsidiary Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019
Line of Credit Facility [Line Items]
Less – current maturities	$ (4,795)	$ (5,786)
Total long-term debt	1,980	2,052
Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	5,602	6,592
Less – current maturities	(4,553)	(5,501)
Total long-term debt	1,049	1,091
Receivables pledged as collateral	629	672
Term loan | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	2,101	2,318
Short-term borrowings | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	2,794	3,744
Factor | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	$ 707	$ 530