Insurance Recoveries - Schedule of Business Insurance Recoveries (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2017 |
|
| Unusual or Infrequent Items, or Both [Abstract] | |||
| Insurance receivable | $ 1,197 | ||
| Business interruption | (484) | ||
| Net property insurance claims | (284) | (20) | |
| Business interruption, operating activity | 100 | ||
| Proceeds from property insurance claims | $ 100 | $ 20 | |