Basis of Presentation and Significant Accounting Policies - Summary of Financial Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Sep. 30, 2019 |
|---|---|---|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liability | $ 11 | $ 9 |
| Level 2 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liability | $ 11 | $ 9 |