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Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Revenue from External Customer [Line Items] |  |
Managed service contracts, right to refund, period | 30 days |
Total sales | $ 16,572 | $ 18,980
Product |  |
Revenue from External Customer [Line Items] |  |
Sales | 13,196 | 15,674
Total sales | 13,222 | 15,711
Service |  |
Revenue from External Customer [Line Items] |  |
Sales | 3,350 | 3,269
Total sales | 3,350 | 3,269
Finance |  |
Revenue from External Customer [Line Items] |  |
Finance | 26 | 37
High Performance Products Segment |  |
Revenue from External Customer [Line Items] |  |
Total sales | 1,041 | 2,026
High Performance Products Segment | Product |  |
Revenue from External Customer [Line Items] |  |
Sales | 767 | 1,733
Total sales | 767 | 1,733
High Performance Products Segment | Service |  |
Revenue from External Customer [Line Items] |  |
Sales | 274 | 293
Total sales | 274 | 293
TS |  |
Revenue from External Customer [Line Items] |  |
Total sales | 15,531 | 16,954
TS | U.K. |  |
Revenue from External Customer [Line Items] |  |
Total sales | 679 | 1,802
TS | U.S. |  |
Revenue from External Customer [Line Items] |  |
Total sales | 14,852 | 15,152
TS | Product |  |
Revenue from External Customer [Line Items] |  |
Sales | 12,429 | 13,941
Total sales | 12,455 | 13,978
TS | Product | U.K. |  |
Revenue from External Customer [Line Items] |  |
Sales | 553 | 1,732
Total sales | 553 | 1,732
TS | Product | U.S. |  |
Revenue from External Customer [Line Items] |  |
Sales | 11,876 | 12,209
Total sales | 11,902 | 12,246
TS | Service |  |
Revenue from External Customer [Line Items] |  |
Sales | 3,076 | 2,976
Total sales | 3,076 | 2,976
TS | Service | U.K. |  |
Revenue from External Customer [Line Items] |  |
Sales | 126 | 70
Total sales | 126 | 70
TS | Service | U.S. |  |
Revenue from External Customer [Line Items] |  |
Sales | 2,950 | 2,906
Total sales | 2,950 | 2,906
TS | Finance |  |
Revenue from External Customer [Line Items] |  |
Finance | 26 | 37
TS | Finance | U.S. |  |
Revenue from External Customer [Line Items] |  |
Finance | $ 26 | $ 37

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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