Fair Value Measurements - Rollforward (Details) - Level 3 $ in Thousands |
6 Months Ended |
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Mar. 31, 2017
USD ($)
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| Warrant liability | |
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | |
| Balance at September 28, 2016 (inception of issuance of the Notes) | $ 1,223 |
| Change in fair value | (147) |
| March 31, 2017 | 1,076 |
| Convertible note embedded derivative liability | |
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | |
| Balance at September 28, 2016 (inception of issuance of the Notes) | 3,693 |
| Change in fair value | (475) |
| March 31, 2017 | $ 3,218 |
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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