Debt - Schedule of Foreign Subsidiary Borrowings (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Line of Credit Facility [Line Items]
Less – current maturities	$ (5,684)	$ (5,944)
Total long-term debt	2,366	2,332
Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	6,773	7,949
Less – current maturities	(5,394)	(5,822)
Total long-term debt	1,379	2,127
Receivables pledged as collateral	461	2,007
Term loan | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	2,698	3,548
Short-term borrowings | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	3,743	3,472
Factor | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	$ 332	$ 929