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Supplemental Balance Sheet Disclosures - Accrued Expenses (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 | Mar. 31, 2023 | Sep. 30, 2022
Accrued expenses |  |  |
Warranty | $ 587,650 | $ 587,650 | $ 607,001
Salary, benefits and payroll taxes | 742,570 | 742,570 | 1,030,628
Professional fees | 130,600 | 130,600 | 364,794
Operating lease | $ 13,287 | $ 13,287 | 13,615
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | Total accrued expenses | Total accrued expenses |
Other | $ 388,084 | $ 388,084 | 956,237
Total accrued expenses | 1,862,191 | 1,862,191 | $ 2,972,275
Warranty cost and accrual information |  |  |
Warranty accrual, beginning of period | 577,690 | 607,001 |
Accrued expense | 34,912 | 34,376 |
Warranty cost | (24,952) | (53,727) |
Warranty accrual, end of period | $ 587,650 | $ 587,650 |

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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126907703&loc=d3e12524-110249 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 25 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126907644&loc=d3e11281-110244 + Details
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