Supplemental Balance Sheet Disclosures - Accrued Expenses (Details) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 31, 2025	Mar. 31, 2025	Sep. 30, 2024
Accrued expenses
Warranty	$ 565,033	$ 565,033	$ 596,538
Salary, benefits and payroll taxes	832,858	832,858	1,685,372
Professional fees			262,320
Operating lease			2,100
Income tax payable	228,535	228,535	1,194,185
Other	1,446,530	1,446,530	868,779
Total accrued expenses	3,072,956	3,072,956	$ 4,609,294
Warranty cost and accrual information
Warranty accrual, beginning of period	522,724	596,538
Accrued expense	67,000	47,000
Warranty cost	(24,691)	(78,505)
Warranty accrual, end of period	$ 565,033	$ 565,033