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Trade Accounts and Notes Receivable (Tables) | 3 Months Ended
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Dec. 31, 2020
Receivables [Abstract] |
Trade Accounts Receivable, Net | Trade accounts receivable, net (excluding notes receivable) are reflected in the following table (in thousands):
|  | December 31, 2020 |  |  | September 30, 2020 |
Trade accounts receivable |  | $ | 5,695 |  |  | $ | 14,090 |
Allowance for doubtful accounts |  |  | (558 | ) |  |  | (496 | )
Total |  | $ | 5,137 |  |  | $ | 13,594 |
Notes Receivables, Net | Notes receivable are reflected in the following table (in thousands):
|  | December 31, 2020 |  |  | September 30, 2020 |
Notes receivable |  | $ | 13,373 |  |  | $ | 184 |
Less current portion |  |  | (13,233 | ) |  |  | (184 | )
Non-current notes receivable |  | $ | 140 |  |  | $ | — |

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