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Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
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Sep. 30, 2021 | Sep. 30, 2020
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 2,488 | $ 2,088
Accumulated Amortization | (1,630) | (1,479)
Net Carrying Amount | 858 | 609
Customer lists |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 1,609 | 1,219
Customer lists | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Useful Life | 6 years |
Customer lists | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Useful Life | 10 years |
Trade names |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 879 | $ 869
Trade names | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Useful Life | 3 years |
Trade names | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Useful Life | 15 years |

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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 Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 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)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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