Note 7 - Revenue Recognition (Details Textual) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Sep. 30, 2023	Sep. 30, 2022
Revenue From Contract With Customer, Percent	99.00%	98.00%	98.00%	97.00%
Accounts and Financing Receivable, after Allowance for Credit Loss, Total	$ 4,682,297		$ 4,682,297		$ 4,536,916	$ 6,236,555
Unbilled Receivables, Current	463,441		463,441		490,848	777,514
Accounts Receivable, Allowance for Credit Loss, Including Credit Memos, Current	414,409		414,409		155,030	102,570
Accounts Receivable, Allowance for Credit Loss, Writeoff	73	$ 119,956	24,905	$ 120,008
Allowance for Credit Memos			80,000		23,065	0
Contract with Customer, Liability	149,190		149,190		$ 431	$ 3,299
Contract with Customer, Liability, Deferred Revenue Recognized	$ 0	$ 3,927	$ 150,431	$ 7,656