Debt - Schedule of Foreign Subsidiary Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Sep. 30, 2018
Line of Credit Facility [Line Items]
Less – current maturities	$ (5,921)	$ (5,944)
Total long-term debt	1,679	2,332
Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	7,224	7,949
Less – current maturities	(5,779)	(5,822)
Total long-term debt	1,445	2,127
Receivables pledged as collateral	878	2,007
Other | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	2,745	3,548
Short-term borrowings | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	4,145	3,472
Factor | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	$ 334	$ 929