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Leases - Schedule of Lease Expense (Details) - USD ($)
 3 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Leases [Abstract]    
Operating lease expense - fixed payments $ 842  
Variable lease expense 65  
Short-term equipment and other lease expense (includes $146 recorded in advertising and marketing, and $125 recorded in repairs and maintenance; see Note 4) 394  
Sublease income (2)  
Total lease expense, net 1,299 $ 1,000,000
Operating cash outflows from operating leases $ 1,255  
Weighted average remaining lease term 13 years  
Weighted average discount rate 6.10%