Supplemental Balance Sheet Disclosures - Intangible assets (Details) - USD ($)	Mar. 31, 2025	Sep. 30, 2024	Jul. 22, 2024
Finite-Lived Intangible Assets, Net
Accumulated Impairment	$ (44,400)	$ (44,400)
Accumulated Amortization	(3,208,304)	(2,098,146)
Intangible Assets, Net (Excluding Goodwill)
Gross Carrying Value	27,940,833	29,154,838
Accumulated Impairment	(44,400)	(44,400)
Accumulated Amortization	(3,208,304)	(2,098,146)
Net Carrying Value	24,688,129	27,012,292
Customer relationships
Finite-Lived Intangible Assets, Net
Gross Carrying Value	12,604,327	13,008,332
Accumulated Amortization	(2,085,019)	(1,459,861)
Total	$ 10,519,308	11,548,471
Estimated weighted average life	10 years
Intangible Assets, Net (Excluding Goodwill)
Accumulated Amortization	$ (2,085,019)	(1,459,861)
Backlog
Finite-Lived Intangible Assets, Net
Gross Carrying Value	4,850,000	6,310,000
Accumulated Amortization	(485,000)
Total	$ 4,365,000	6,310,000
Estimated weighted average life	4 years
Intangible Assets, Net (Excluding Goodwill)
Accumulated Amortization	$ (485,000)
Licensing and certification rights
Finite-Lived Intangible Assets, Net
Gross Carrying Value	696,506	696,506
Accumulated Impairment	(44,400)	(44,400)
Accumulated Amortization	(638,285)	(638,285)
Total	13,821	13,821
Intangible Assets, Net (Excluding Goodwill)
Accumulated Impairment	(44,400)	(44,400)
Accumulated Amortization	(638,285)	(638,285)
Customer Relationships and Backlog
Finite-Lived Intangible Assets, Net
Total	14,884,308
Licensing and certification rights
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Gross Carrying Value	$ 9,790,000	$ 9,140,000
Honeywell International, Inc | Customer Relationships and Backlog
Intangible Assets, Net (Excluding Goodwill)
Net Carrying Value			$ 430,000
Honeywell International, Inc | License agreement
Intangible Assets, Net (Excluding Goodwill)
Net Carrying Value			$ 1,240,000