Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense	$ (24)	$ (25)
Total debt	23,405	23,380
Less – current maturities	(21,425)	(21,328)
Total long-term debt	1,980	2,052
Finance lease obligations
Debt Instrument [Line Items]
Total debt	122	138
Other, net of unamortized debt issuance costs ($24) and ($25), respectively
Debt Instrument [Line Items]
Other, net of unamortized debt issuance costs	1,051	1,108
Revolving credit agreement | Revolving credit agreement
Debt Instrument [Line Items]
Total debt	16,630	15,542
Foreign subsidiary borrowings
Debt Instrument [Line Items]
Total debt	$ 5,602	$ 6,592