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Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2026 | Dec. 31, 2025 | Dec. 31, 2024
Accounts Receivable, after Allowance for Credit Loss, Current | $ 753,390 | $ 3,448,909 | $ 1,400,000
Accounts Receivable, Allowance for Credit Loss, Current | 40,000.00 | 40,000.00 | 20,000.00
Contract with Customer, Liability, Current | 83,279 | $ 127,874 | $ 148,054
Contract with Customer, Liability, Revenue Recognized | $ 125,923 |  |

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