Debt - Schedule of Foreign Subsidiary Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Sep. 30, 2019
Line of Credit Facility [Line Items]
Less – current maturities	$ (4,860)	$ (5,786)
Total long-term debt	1,903	2,052
Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	5,481	6,592
Less – current maturities	(4,618)	(5,501)
Total long-term debt	863	1,091
Receivables pledged as collateral	918	672
Term loan | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	1,848	2,318
Short-term borrowings | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	2,967	3,744
Factor | Foreign subsidiary borrowings
Line of Credit Facility [Line Items]
Total debt	$ 666	$ 530