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Note 14 - Segment Information (Tables) | 6 Months Ended
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Sep. 30, 2025
Notes Tables |
Reconciliation of Revenue from Segments to Consolidated [Table Text Block] |
Telecommunications |  | For the Three Months Ended September 30, |  |  | For the Six Months Ended September 30, |
2025 ($ in thousands) |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Telecommunications Segment Revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Wireless internet services |  | $ | 1,666 |  |  | $ | 1,764 |  |  | $ | 3,338 |  |  | $ | 2,083 |
Fiber internet services |  |  | 1,016 |  |  |  | 773 |  |  |  | 1,946 |  |  |  | 879 |
Other revenue |  |  | 477 |  |  |  | 421 |  |  |  | 909 |  |  |  | 485 |
Total revenue |  |  | 3,159 |  |  |  | 2,958 |  |  |  | 6,193 |  |  |  | 3,447 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General and administrative |  |  | 1,252 |  |  |  | 1,134 |  |  |  | 2,479 |  |  |  | 1,965 |
Depreciation and amortization |  |  | 829 |  |  |  | 465 |  |  |  | 1,401 |  |  |  | 545 |
Plant specific operations |  |  | 363 |  |  |  | 324 |  |  |  | 790 |  |  |  | 398 |
Plant nonspecific operations |  |  | 247 |  |  |  | 227 |  |  |  | 474 |  |  |  | 265 |
Cost of other revenue (exclusive of depreciation shown separately) |  |  | 177 |  |  |  | 209 |  |  |  | 353 |  |  |  | 245 |
Cost of wireless and fiber internet services (exclusive of depreciation shown separately) |  |  | 175 |  |  |  | 157 |  |  |  | 371 |  |  |  | 187 |
Advertising and marketing |  |  | 85 |  |  |  | - |  |  |  | 229 |  |  |  | - |
Total segment operating expenses |  |  | 3,128 |  |  |  | 2,516 |  |  |  | 6,097 |  |  |  | 3,605 |
Telecommunications segment operating income (loss) |  |  | 31 |  |  |  | 442 |  |  |  | 96 |  |  |  | (158 | )
Total other segment (expense) income1 |  |  | (1 | ) |  |  | 30 |  |  |  | 27 |  |  |  | 30 |
Segment income (loss) before income taxes and discontinued operations |  |  | 30 |  |  |  | 472 |  |  |  | 123 |  |  |  | (128 | )
Reconciliation to consolidated net loss before income taxes and discontinued operations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate overhead and other income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General and administrative |  |  | (956 | ) |  |  | (1,677 | ) |  |  | (1,962 | ) |  |  | (4,637 | )
Advertising & marketing |  |  | (4 | ) |  |  | (12 | ) |  |  | (13 | ) |  |  | (12 | )
Depreciation and amortization |  |  | (35 | ) |  |  | (16 | ) |  |  | (71 | ) |  |  | (27 | )
Interest income, net |  |  | 176 |  |  |  | 395 |  |  |  | 395 |  |  |  | 806 |
Emigration tax (expense) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (1,711 | )
(Loss) on dissenting shareholders' liability |  |  | - |  |  |  | (274 | ) |  |  | - |  |  |  | (1,103 | )
Other income |  |  | - |  |  |  | 10 |  |  |  | - |  |  |  | 10 |
Consolidated net loss before income taxes and discontinued operations |  | $ | (789 | ) |  | $ | (1,102 | ) |  | $ | (1,528 | ) |  | $ | (6,802 | )
Reconciliation of Assets from Segment to Consolidated [Table Text Block] |
|  | September 30, |  |  | March 31, |
($ in thousands) |  | 2025 |  |  | 2025 |
Telecommunications operating segment assets |  | $ | 62,944 |  |  | $ | 53,994 |
Corporate assets |  |  | 18,124 |  |  |  | 23,678 |
Total Assets |  | $ | 81,068 |  |  | $ | 77,672 |

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