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Supplemental Balance Sheet Disclosures - Accrued Expenses (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Sep. 30, 2022
Accrued expenses |  |
Warranty | $ 577,690 | $ 607,001
Salary, benefits and payroll taxes | 381,822 | 1,030,628
Professional fees | 275,077 | 364,794
Income tax | 475,200 |
Operating lease | $ 13,450 | 13,615
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | Total accrued expenses |
Other | $ 785,732 | 956,237
Total accrued expenses | 2,508,971 | $ 2,972,275
Warranty cost and accrual information |  |
Warranty accrual, beginning of period | 607,001 |
Accrued expense | (536) |
Warranty cost | (28,775) |
Warranty accrual, end of period | $ 577,690 |

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