Summary of Significant Accounting Policies - Property and Equipment, Contract balances, Income taxes, Warranty Reserve and Self-insurance reserves (Details) - USD ($)	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Contract Balances
Balance at beginning of the period (Contract Assets)	$ 487,139	$ 162,742
Balance at beginning of the period (Contract Liabilities)	143,359	259,183
Amount transferred to receivables from contract assets	(373,139)
Contract asset additions	1,566,060	324,397
Performance obligations satisfied during the period that were included in the contract liability balance at the beginning of the period (Contract Liabilities)	(122,541)	(240,944)
Increases due to invoicing prior to satisfaction of performance obligations (Contract Liabilities)	319,663	125,120
Balance at end of the period (Contract Assets)	1,680,060	487,139
Balance at end of the period (Contract Liabilities)	$ 340,481	143,359
Warranty Reserve
Standard warranty period	24 months
Self-Insurance Reserves
Estimated liability for medical claims incurred but not reported	$ 98,300	$ 62,300
Excess of funded premiums over estimated claims incurred but not reported	$ 36,400
Buildings and improvements | Minimum
Property and Equipment
Estimated useful lives	10 years
Buildings and improvements | Maximum
Property and Equipment
Estimated useful lives	39 years
Furniture and office equipment | Minimum
Property and Equipment
Estimated useful lives	5 years
Furniture and office equipment | Maximum
Property and Equipment
Estimated useful lives	7 years
Computer equipment
Property and Equipment
Estimated useful lives	5 years
Equipment | Minimum
Property and Equipment
Estimated useful lives	1 year
Equipment | Maximum
Property and Equipment
Estimated useful lives	19 years