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Summary of Revenue from the Sale of Products and Services Under Contracts with Customers Excludes All Revenue Earned from Rental Contracts by Geographic Areas (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2019 | Sep. 30, 2018
Disaggregation Of Revenue [Line Items] |  |
Total revenue | $ 45,847 | $ 53,306
Operating Segments |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 45,847 | 53,306
Operating Segments | Asia |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 6,025 | 2,143
Operating Segments | Canada |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 2,558 | 13,044
Operating Segments | Europe |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 6,569 | 4,652
Operating Segments | United States |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | 28,763 | 31,296
Operating Segments | Other |  |
Disaggregation Of Revenue [Line Items] |  |
Total revenue | $ 1,932 | $ 2,171

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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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