Note 5 - Liquidity and Uncertainties (Details Textual) - USD ($) |
9 Months Ended | ||||
|---|---|---|---|---|---|
Oct. 22, 2025 |
Jul. 29, 2025 |
Sep. 30, 2025 |
Sep. 30, 2024 |
Dec. 31, 2024 |
|
| Working Capital | $ 2,800,000 | ||||
| Long-Term Debt, Current Maturities | 3,724,000 | $ 1,855,000 | |||
| Proceeds from Issuance of Debt | 3,000,000 | $ 0 | |||
| Convertible Debt [Member] | |||||
| Debt Agreement, AuthoMaximum Borrowing Capacity | $ 10,909,885 | ||||
| Debt Instrument, Face Amount | 3,272,966 | ||||
| Proceeds from Issuance of Debt | $ 3,000,000 | ||||
| Convertible Debt [Member] | Subsequent Event [Member] | |||||
| Debt Instrument, Face Amount | $ 3,545,712 | ||||
| Proceeds from Issuance of Debt | $ 3,250,000 | ||||
| Senior Convertible Note With 3i, LP [Member] | Notes Payable, Other Payables [Member] | |||||
| Long-Term Debt, Current Maturities | 2,600,000 | ||||
| Sellers Note With Avelina Masonry LLC [Member] | Notes Payable, Other Payables [Member] | |||||
| Long-Term Debt, Current Maturities | $ 1,000,000 | ||||