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