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Commitments and Contingencies - Operating leases and purchase obligations (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2019
Operating leases |  |  |
Operating Lease, Expense | $ 103,000 |  |
Operating leases future minimum payments due | 46,474 |  |
Purchase Obligations |  |  |
Purchase obligations on open purchase orders | 2,115,971 | $ 853,123 | $ 1,082,928
Product Liability |  |  |
Product liability insurance | $ 50,000,000 |  |

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- Definition Represents amount of insurance which is adequate to cover potential liabilities that may arise from product liability claims. + References No definition available. + Details
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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
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