Note 11 - Segment Information - Disaggregation of Revenues (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| REVENUES | $ 187,809 | $ 34,791 | $ 212,452 | $ 231,666 |
| Europe [Member] | ||||
| REVENUES | 69,627 | 34,791 | 94,270 | 231,666 |
| UNITED STATES | ||||
| REVENUES | 118,182 | 0 | 118,182 | 0 |
| GERMANY | ||||
| REVENUES | 8,630 | 13,742 | 61,967 | 76,256 |
| HUNGARY | ||||
| REVENUES | 6,408 | 5,313 | 19,521 | 15,126 |
| NETHERLANDS | ||||
| REVENUES | $ 54,589 | $ 15,736 | $ 12,782 | $ 140,284 |