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Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018
Goodwill And Other Intangible Assets [Line Items] |  |
Goodwill | $ 5,008 | $ 4,343
Other intangible assets, net | 10,063 | 8,006
Optoseis Technology and Quantum |  |
Goodwill And Other Intangible Assets [Line Items] |  |
Goodwill | 5,008 | 4,343
Total other intangible assets | 11,918 | 8,200
Accumulated amortization | (1,855) | (194)
Other intangible assets, net | $ 10,063 | 8,006
Weighted-Average Remaining Useful Lives (in years) | 10 years |
Optoseis Technology and Quantum | Developed Technology |  |
Goodwill And Other Intangible Assets [Line Items] |  |
Total other intangible assets | $ 5,918 | 4,200
Weighted-Average Remaining Useful Lives (in years) | 16 years 10 months 24 days |
Optoseis Technology and Quantum | Customer Relationships |  |
Goodwill And Other Intangible Assets [Line Items] |  |
Total other intangible assets | $ 3,900 | 2,500
Weighted-Average Remaining Useful Lives (in years) | 2 years 10 months 24 days |
Optoseis Technology and Quantum | Trade Names |  |
Goodwill And Other Intangible Assets [Line Items] |  |
Total other intangible assets | $ 1,930 | 1,400
Weighted-Average Remaining Useful Lives (in years) | 3 years 10 months 24 days |
Optoseis Technology and Quantum | Non-compete Agreements |  |
Goodwill And Other Intangible Assets [Line Items] |  |
Total other intangible assets | $ 170 | $ 100
Weighted-Average Remaining Useful Lives (in years) | 3 years |

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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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