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Trade Accounts and Financing Receivables (Tables) | 9 Months Ended
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Jun. 30, 2021
Receivables [Abstract] |
Trade Accounts Receivable, Net | Trade accounts receivable, net (excluding notes receivable) are reflected in the following table (in thousands):
|  | June 30, 2021 |  |  | September 30, 2020 |
Trade accounts receivable |  | $ | 12,966 |  |  | $ | 14,090 |
Allowance for doubtful accounts |  |  | (482 | ) |  |  | (496 | )
Total |  | $ | 12,484 |  |  | $ | 13,594 |
Financing Receivables | Financing receivables are reflected in the following table (in thousands):
|  | June 30, 2021 |  |  | September 30, 2020 |
Promissory notes |  | $ | 5,708 |  |  | $ | 184 |
Sales-type lease |  |  | 2,974 |  |  |  | — |
Total financing receivables |  | $ | 8,682 |  |  |  | 184 |
Unearned income: |  |  |  |  |  |  |  |
Sales-type lease |  | $ | (31 | ) |  |  | — |
Total unearned income |  | $ | (31 | ) |  |  | — |
Total financing receivables, net of unearned income |  |  | 8,651 |  |  |  | 184 |
Less current portion |  |  | (6,497 | ) |  |  | (184 | )
Non-current notes receivable |  | $ | 2,154 |  |  | $ | — |

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- Definition Schedule of financing receivables. + References No definition available. + Details
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