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Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Revenue from External Customer [Line Items] |  |
Managed service contracts, right to refund, period | 30 days |
Total sales | $ 11,388 | $ 16,858
Product |  |
Revenue from External Customer [Line Items] |  |
Sales | 8,397 | 13,533
Total sales | 8,408 | 13,559
Service |  |
Revenue from External Customer [Line Items] |  |
Sales | 2,980 | 3,299
Total sales | 2,980 | 3,299
Finance |  |
Revenue from External Customer [Line Items] |  |
Finance | 11 | 26
High Performance Products Segment |  |
Revenue from External Customer [Line Items] |  |
Total sales | 1,556 | 1,041
High Performance Products Segment | Product |  |
Revenue from External Customer [Line Items] |  |
Sales | 1,176 | 767
Total sales | 1,176 | 767
High Performance Products Segment | Service |  |
Revenue from External Customer [Line Items] |  |
Sales | 380 | 274
Total sales | 380 | 274
TS |  |
Revenue from External Customer [Line Items] |  |
Total sales | 9,832 | 15,817
TS | U.K. |  |
Revenue from External Customer [Line Items] |  |
Total sales | 1,490 | 679
TS | U.S. |  |
Revenue from External Customer [Line Items] |  |
Total sales | 8,342 | 15,138
TS | Product |  |
Revenue from External Customer [Line Items] |  |
Sales | 7,221 | 12,766
Total sales | 7,232 | 12,792
TS | Product | U.K. |  |
Revenue from External Customer [Line Items] |  |
Sales | 1,403 | 553
Total sales | 1,403 | 553
TS | Product | U.S. |  |
Revenue from External Customer [Line Items] |  |
Sales | 5,818 | 12,213
Total sales | 5,829 | 12,239
TS | Service |  |
Revenue from External Customer [Line Items] |  |
Sales | 2,600 | 3,025
Total sales | 2,600 | 3,025
TS | Service | U.K. |  |
Revenue from External Customer [Line Items] |  |
Sales | 87 | 126
Total sales | 87 | 126
TS | Service | U.S. |  |
Revenue from External Customer [Line Items] |  |
Sales | 2,513 | 2,899
Total sales | 2,513 | 2,899
TS | Finance |  |
Revenue from External Customer [Line Items] |  |
Finance | 11 | 26
TS | Finance | U.S. |  |
Revenue from External Customer [Line Items] |  |
Finance | $ 11 | $ 26

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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