Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Details)

v3.19.3
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