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Debt - Foreign Subsidiary Borrowings (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Sep. 30, 2020
--- | --- | ---
Line of Credit Facility [Line Items] |  |
Less – current maturities | $ (9,566) | $ (7,144)
Total long-term debt | 2,669 | 4,606
Foreign subsidiary borrowings |  |
Line of Credit Facility [Line Items] |  |
Total debt | 6,632 | 5,759
Less – current maturities | (4,551) | (3,544)
Total long-term debt | 2,081 | 2,215
Receivables pledged as collateral | 485 | 1,859
Foreign subsidiary borrowings | Term loan |  |
Line of Credit Facility [Line Items] |  |
Total debt | 3,127 | 2,670
Foreign subsidiary borrowings | Short-term borrowings |  |
Line of Credit Facility [Line Items] |  |
Total debt | 1,867 | 2,620
Foreign subsidiary borrowings | Factor |  |
Line of Credit Facility [Line Items] |  |
Total debt | $ 1,638 | $ 469

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