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Intangibles - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Finite Lived Intangible Assets [Line Items] |  |
Intangible amortization expense | $ 1,569,000 | $ 1,401,000
Impairment charge of lease intangibles | $ 3,222,000 | 0
Domain Name and Marketing | Minimum |  |
Finite Lived Intangible Assets [Line Items] |  |
Useful lives of intangible assets | 3 years |
Domain Name and Marketing | Maximum |  |
Finite Lived Intangible Assets [Line Items] |  |
Useful lives of intangible assets | 20 years |
Software | Minimum |  |
Finite Lived Intangible Assets [Line Items] |  |
Useful lives of intangible assets | 3 years |
Software | Maximum |  |
Finite Lived Intangible Assets [Line Items] |  |
Useful lives of intangible assets | 5 years |
Customer Relationships | Minimum |  |
Finite Lived Intangible Assets [Line Items] |  |
Useful lives of intangible assets | 7 years |
Customer Relationships | Maximum |  |
Finite Lived Intangible Assets [Line Items] |  |
Useful lives of intangible assets | 15 years |
Leases |  |
Finite Lived Intangible Assets [Line Items] |  |
Useful lives of intangible assets | over the life of the lease |
Customer Lists |  |
Finite Lived Intangible Assets [Line Items] |  |
Useful lives of intangible assets | 20 years |
Trade Names |  |
Finite Lived Intangible Assets [Line Items] |  |
Useful lives of intangible assets | 20 years |
Trade Names | ApplianceSmart Inc |  |
Finite Lived Intangible Assets [Line Items] |  |
Impairment charge of lease intangibles | $ 1,839,000 |
Customer Lists and Trade Names Intangible Asset [Member] | ApplianceSmart Inc |  |
Finite Lived Intangible Assets [Line Items] |  |
Impairment charge of lease intangibles | $ 3,222,000 | $ 0

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
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