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INTANGIBLE ASSETS (Tables) | 6 Months Ended
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Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
Amortized intangible assets |  | (in thousands) |
|  | As of September 30, 2021 ($) |  |  | As of March 31, 2021 ($) |
Patents |  |  | 277 |  |  |  | 220 |
Other intangibles |  |  | 32 |  |  |  | 32 |
Accumulated amortization |  |  | (37 | ) |  |  | (26 | )
Total amortized intangible assets |  |  | 272 |  |  |  | 226 |
Indefinite lived intangible assets |  |  |  |  |  |  |  |
Patents |  |  | 139 |  |  |  | 181 |
Other intangibles |  |  | - |  |  |  | - |
Total unamortized intangible assets |  |  | 139 |  |  |  | 181 |
Total intangible assets |  |  | 411 |  |  |  | 407 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
Estimated amortization expense |  | (in thousands) ($) |
For the year ended 2022 |  |  | 22 |
For the year ended 2023 |  |  | 24 |
For the year ended 2024 |  |  | 27 |
For the year ended 2025 |  |  | 29 |
For the year ended 2026 |  |  | 32 |

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