Note 2 - Significant Accounting Policies - Property, Plant, and Equipment Depreciation Rates (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Computer Equipment [Member] | |
| Depreciation Rate | 30.00% |
| Computer Software [Member] | Maximum [Member] | |
| Depreciation Rate | 100.00% |
| Furniture and Fixtures [Member] | |
| Depreciation Rate | 20.00% |
| Vehicles and Tools [Member] | |
| Depreciation Rate | 20.00% |
| Fiber Network [Member] | |
| Property, Plant and Equipment, Useful Life (Year) | 15 years |
| Customer Equipment and Installations [Member] | |
| Property, Plant and Equipment, Useful Life (Year) | 3 years |
| Capitalized Internal Use Software [Member] | Minimum [Member] | |
| Property, Plant and Equipment, Useful Life (Year) | 3 years |
| Capitalized Internal Use Software [Member] | Maximum [Member] | |
| Property, Plant and Equipment, Useful Life (Year) | 7 years |