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Note 2 - Revenue - Customer Accounts Receivable (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Sep. 30, 2024
Trade accounts receivable |  | $ 15,856,469 | $ 4,483,739
Unbilled revenue |  | 6,489,021 | 1,294,798
Customer credit balances |  | 1,981,392 | 1,915,859
Customer deposits |  | 1,555,134 | 1,488,113
Increase (decrease) in Unbilled revenue | [1] | 5,194,223 |
Increase (decrease) in Customer credit balances |  | 65,533 |
Increase (decrease) in Customer deposits |  | 67,021 |
Trade Accounts Receivable [Member] |  |  |
Trade accounts receivable |  | 9,403,466 | $ 3,080,140
Increase (decrease) in Trade accounts receivable | [1] | $ 6,323,326 |
[1] | Included in "Accounts receivable, net" in the consolidated balance sheet. Amounts shown net of reserve for bad debts.

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