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Fair Value Measurements (Details) - USD ($) | Sep. 30, 2019 | Sep. 30, 2018
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets held for sale, fair value | $ 0 |
Estimated discount rate | 4.08% | 4.08%
Trailers | Fair Value, Inputs, Level 3 | Carrying Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets |  | $ 606,000
Trailers | Fair Value, Inputs, Level 3 | Adjustment to Fair Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets |  | 150,000
Trailers | Fair Value, Inputs, Level 3 | Fair Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets |  | $ 456,000

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