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Goodwill and Intangible Assets (Tables) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 25, 2020 | Mar. 27, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Summary of Changes in Carrying Amount of Goodwill | The table below summarizes the changes in the carrying amount of goodwill as follows:
|  | Total |
Balance at March 27, 2020 |  | $ | 1,285 |
Goodwill arising from Acquisition |  |  | 18,803 |
Currency translation |  |  | 161 |
Balance at December 25, 2020 |  | $ | 20,249 |
| The table below summarizes the changes in the carrying amount of goodwill as follows:
|  | Fiscal Year Ended |
|  | March 29, 2019 |  |  | March 27, 2020 |
Beginning balance |  | $ | 1,467 |  |  | $ | 1,336 |
Foreign currency translation |  |  | (131 | ) |  |  | (51 | )
Ending balance |  | $ | 1,336 |  |  | $ | 1,285 |
Schedule of Intangible Assets, Net | Intangible assets, net is as follows:
|  | December 25, 2020 |
Description |  | Gross |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Weighted- Average Lives |
Patents |  | $ | 31,852 |  |  | $ | 11,661 |  |  | $ | 20,191 |  |  |  | 10 years |
Customer relationships |  |  | 6,193 |  |  |  | 5,823 |  |  |  | 370 |  |  |  | 9 years |
Process technology |  |  | 17,150 |  |  |  | 2,028 |  |  |  | 15,122 |  |  |  | 12 years |
Trademarks |  |  | 810 |  |  |  | 73 |  |  |  | 737 |  |  |  | 5 years |
Other |  |  | 32 |  |  |  | 32 |  |  |  | — |  |  |  |  |
Total |  | $ | 56,037 |  |  | $ | 19,617 |  |  | $ | 36,420 |  |  |  |  |
|  | March 27, 2020 |
Description |  | Gross |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Weighted- Average Lives |
Patents |  | $ | 29,115 |  |  | $ | 9,834 |  |  | $ | 19,281 |  |  |  | 10 years |
Customer relationships |  |  | 5,462 |  |  |  | 5,335 |  |  |  | 127 |  |  |  | 9 years |
Process technology |  |  | 1,650 |  |  |  | 1,650 |  |  |  | — |  |  |  |  |
Trademarks |  |  | 608 |  |  |  | 58 |  |  |  | 550 |  |  |  |  |
Other |  |  | 32 |  |  |  | 32 |  |  |  | — |  |  |  |  |
Total |  | $ | 36,867 |  |  | $ | 16,909 |  |  | $ | 19,958 |  |  |  |  |
| Intangible assets, net is as follows:
|  | March 29, 2019 |
Description |  | Gross |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Weighted- Average Lives |
Patents |  | $ | 24,986 |  |  | $ | 8,035 |  |  | $ | 16,951 |  |  |  | 10 years |
Customer relationships |  |  | 5,205 |  |  |  | 4,946 |  |  |  | 259 |  |  |  | 9 years |
Process technology |  |  | 1,650 |  |  |  | 1,650 |  |  |  | — |  |  |  |  |
Trademarks |  |  | 563 |  |  |  | 58 |  |  |  | 505 |  |  |  |  |
Other |  |  | 32 |  |  |  | 32 |  |  |  | — |  |  |  |  |
Total |  | $ | 32,436 |  |  | $ | 14,721 |  |  | $ | 17,715 |  |  |  |  |
Schedule of Annual Amortization Expense | As of December 25, 2020, annual amortization expense of intangible assets for the next five fiscal years is expected to be as follows:
Remainder of 2021 |  | $ | 850 |
2022 |  |  | 3,293 |
2023 |  |  | 3,139 |
2024 |  |  | 3,003 |
2025 |  |  | 2,709 |
Thereafter |  |  | 23,426 |
Total |  | $ | 36,420 |
| As of March 27, 2020, annual amortization expense of intangible assets for the next five fiscal years is expected to be as follows:
Fiscal Year |  | Amortization Expense |
2021 |  | $ | 2,391 |
2022 |  |  | 2,145 |
2023 |  |  | 1,881 |
2024 |  |  | 1,695 |
2025 |  |  | 1,410 |
Thereafter |  |  | 10,436 |
Total |  | $ | 19,958 |

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