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INTANGIBLE ASSETS (Tables) | 3 Months Ended
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Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  | (in thousands) |
|  | As of June 30, 2023 ($) |  |  | As of March 31, 2023 ($) |
Amortized intangible assets |  |  |  |  |  |  |  |
Patents |  |  | 721 |  |  |  | 709 |
Other intangibles |  |  | 34 |  |  |  | 34 |
Accumulated amortization |  |  | (125 | ) |  |  | (107 | )
Total amortized intangible assets |  |  | 630 |  |  |  | 636 |
Other intangible assets |  |  |  |  |  |  |  |
Patents |  |  | 549 |  |  |  | 534 |
Other intangibles |  |  | - |  |  |  | - |
Total unamortized intangible assets |  |  | 549 |  |  |  | 534 |
Total intangible assets |  |  | 1,179 |  |  |  | 1,170 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
Estimated annual amortization expense |  | (in thousands) ($) |
For the year ended 2024 |  |  | 80 |
For the year ended 2025 |  |  | 88 |
For the year ended 2026 |  |  | 96 |
For the year ended 2027 |  |  | 106 |
For the year ended 2028 |  |  | 117 |

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