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Accounts and Financing Receivables (Tables) | 12 Months Ended
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Sep. 30, 2019
Receivables [Abstract] |
Trade Accounts Receivable | Trade accounts receivable consisted of the following (in thousands):
|  | AS OF SEPTEMBER 30, |
|  | 2019 |  |  | 2018 |
Trade accounts receivable |  | $ | 25,144 |  |  | $ | 15,776 |
Allowance for doubtful accounts |  |  | (951 | ) |  |  | (1,453 | )
|  | $ | 24,193 |  |  | $ | 14,323 |
Financing Receivables | Financing receivables are reflected in the following table (in thousands):
|  | AS OF SEPTEMBER 30, |
|  | 2019 |  |  | 2018 |
Promissory notes |  | $ | 780 |  |  | $ | 5,646 |
Sales-type lease |  |  | 2,692 |  |  |  | 5,533 |
Total financing receivables |  |  | 3,472 |  |  |  | 11,179 |
Unearned income: |  |  |  |  |  |  |  |
Promissory notes |  |  | — |  |  |  | (95 | )
Sales-type lease |  |  | (55 | ) |  |  | (237 | )
Total unearned income |  |  | (55 | ) |  |  | (332 | )
Total financing receivables, net of unearned income |  |  | 3,417 |  |  |  | 10,847 |
Allowance for doubtful promissory notes |  |  | — |  |  |  | (1,849 | )
Less current portion |  |  | (3,233 | ) |  |  | (4,258 | )
Non-current financing receivables |  | $ | 184 |  |  | $ | 4,740 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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