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Goodwill and Intangible Assets - Schedule of Intangible Assets, Net (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 24, 2021 | Mar. 26, 2021
Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 60,468 | $ 56,953
Accumulated Amortization | 24,483 | 20,587
Net Carrying Amount | 35,985 | 36,366
Patents |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 35,558 | 32,751
Accumulated Amortization | 14,580 | 12,307
Net Carrying Amount | $ 20,978 | $ 20,444
Weighted- Average Lives | 10 years | 10 years
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 6,899 | $ 6,193
Accumulated Amortization | 6,640 | 5,865
Net Carrying Amount | $ 259 | $ 328
Weighted- Average Lives | 9 years | 9 years
Process technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 13,100 | $ 13,100
Accumulated Amortization | 1,470 | 651
Net Carrying Amount | $ 11,630 | $ 12,449
Weighted- Average Lives | 12 years | 12 years
Indefinite-lived and legacy process technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 4,050 | $ 4,050
Accumulated Amortization | 1,650 | 1,650
Net Carrying Amount | 2,400 | 2,400
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 200 | 200
Accumulated Amortization | 54 | 24
Net Carrying Amount | $ 146 | $ 176
Weighted- Average Lives | 5 years | 5 years
Legacy trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 629 | $ 627
Accumulated Amortization | 57 | 58
Net Carrying Amount | 572 | 569
Other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 32 | 32
Accumulated Amortization | 32 | 32
Net Carrying Amount | $ 0 | $ 0

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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