Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual)				3 Months Ended				6 Months Ended
	Apr. 17, 2025	Apr. 10, 2025	Jan. 30, 2024 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)
Accounts Receivable, Allowance for Credit Loss				$ 416,844				$ 416,844		$ 346,197	$ 42,180
Accounts Receivable, after Allowance for Credit Loss, Current				694,515				694,515		621,678
Inventory Valuation Reserves				82,036				82,036		$ (0)
Revenue, Remaining Performance Obligation, Amount				0				0
Net Income (Loss) Attributable to Parent				(480,757)	$ 15,095	$ (3,010,562)	$ (996,501)	(465,662)	$ (4,007,065)
Working Capital				(3,700,000)				(3,700,000)
Accrued Dividends, Subsequently Converted to Equity				$ 6,700,000				$ 6,700,000
Reverse Stock Split [Member] | Subsequent Event [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	8	8
Investors 8% Senior Secured Original Issue 20% Discount Convertible Promissory Note [Member]
Proceeds from Convertible Debt			$ 1,250,000
Debt Instrument, Interest Rate, Stated Percentage			8.00%
Debt Instrument Discounted Percentage			20.00%
Debt Instrument, Face Amount			$ 1,541,666
Customer Concentration Risk [Member] | Revenue Benchmark [Member]
Number of Major Customers				0				0
Manufacturing Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)				5 years				5 years
Software [Member]
Property, Plant and Equipment, Useful Life (Year)				3 years				3 years
Minimum [Member]
MerchantProcessingFee				2.50%				2.50%
Maximum [Member]
MerchantProcessingFee				4.00%				4.00%