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INTANGIBLE ASSETS (Tables) | 3 Months Ended
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Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  | (in thousands) |
|  | As of June 30, 2022 ($) |  |  | As of March 31, 2022 ($) |
Amortized intangible assets |  |  |  |  |  |  |  |
Patents |  |  | 522 |  |  |  | 290 |
Other intangibles |  |  | 32 |  |  |  | 32 |
Accumulated amortization |  |  | (61 | ) |  |  | (51 | )
Total amortized intangible assets |  |  | 493 |  |  |  | 271 |
Other intangible assets |  |  |  |  |  |  |  |
Patents |  |  | 444 |  |  |  | 646 |
Other intangibles |  |  | - |  |  |  | - |
Total unamortized intangible assets |  |  | 444 |  |  |  | 646 |
Total intangible assets |  |  | 937 |  |  |  | 917 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
Estimated amortization expense |  | (in thousands) ($) |
For the year ended 2024 |  |  | 11 |
For the year ended 2025 |  |  | 12 |
For the year ended 2026 |  |  | 14 |
For the year ended 2027 |  |  | 15 |
For the year ended 2028 |  |  | 16 |

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