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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and Equipment to Accounting Pronouncements (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Oct. 01, 2019
Property and Equipment |  |  |
Impairment charges | $ 485,270 | $ 2,873,269 |
Impairment of property and equipment | $ 200,000 | 0 |
Goodwill and Intangible Assets: |  |  |
Intangible asset impairment charges |  | 2,900,000 |
Revenue Recognition |  |  |
Practical expedient, financing components | true |  |
Insurance |  |  |
Letter of credit issued for worker's compensation insurance carrier as part of the entity's self-insured loss control program | $ 500,000 |  |
Contract Costs |  |  |
Practical expedient to expense as incurred any incremental costs to obtain and fulfill customer contracts | true |  |
Fair Value Measurements |  |  |
Intangible asset impairment charges |  | 2,900,000 |
Accounting Pronouncements |  |  |
ROU assets | $ 18,936,126 |  |
Lease liabilities | $ 19,635,704 |  |
Lease, Practical Expedients, Package [true false] | true |  |
ASU 2016-12 | Adjustment |  |  |
Accounting Pronouncements |  |  |
ROU assets |  |  | $ 21,900,000
Lease liabilities |  |  | 22,200,000
Decrease of deferred rent |  |  | $ 300,000
Retail Segment |  |  |
Goodwill and Intangible Assets: |  |  |
Intangible asset impairment charges |  | 2,900,000 |
Fair Value Measurements |  |  |
Intangible asset impairment charges |  | $ 2,900,000 |
Buildings and improvements | Minimum |  |  |
Property and Equipment |  |  |
Estimated useful lives | 5 years |  |
Buildings and improvements | Maximum |  |  |
Property and Equipment |  |  |
Estimated useful lives | 40 years |  |
Warehouse equipment | Minimum |  |  |
Property and Equipment |  |  |
Estimated useful lives | 3 years |  |
Warehouse equipment | Maximum |  |  |
Property and Equipment |  |  |
Estimated useful lives | 15 years |  |
Furniture, fixtures and leasehold improvements | Minimum |  |  |
Property and Equipment |  |  |
Estimated useful lives | 1 year |  |
Furniture, fixtures and leasehold improvements | Maximum |  |  |
Property and Equipment |  |  |
Estimated useful lives | 12 years |  |
Vehicles | Minimum |  |  |
Property and Equipment |  |  |
Estimated useful lives | 2 years |  |
Vehicles | Maximum |  |  |
Property and Equipment |  |  |
Estimated useful lives | 5 years |  |

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