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Revenue (Summary of Amounts Recognized Related to Changes in Estimated Total Lifetime Sales for Material Rights and Costs to Fulfill Contracts With Customers) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2019
Change In Contract With Customer Asset And Liability [Abstract] |  |  |
Revenue | $ 2,671 | $ 6,784 | $ 6,017
Cost of goods sold | $ 1,961 | $ 6,638 | $ 9,580

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- Definition Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from contract modification which (increases) decreases obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details
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- Definition Contract with customer liability cumulative catch up adjustment to cogs modification of contract + References No definition available. + Details
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