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Debt - Schedule of Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Sep. 30, 2018
Debt Instrument [Line Items]    
Total debt $ 26,231 $ 29,529
Less – current maturities (24,552) (27,197)
Total long-term debt 1,679 2,332
Capital lease obligations    
Debt Instrument [Line Items]    
Total debt 185 327
Other    
Debt Instrument [Line Items]    
Total debt 192 0
Revolving credit agreement | Line of Credit    
Debt Instrument [Line Items]    
Total debt 18,630 21,253
Foreign subsidiary borrowings    
Debt Instrument [Line Items]    
Total debt $ 7,224 $ 7,949