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Segment Information - Narrative (Details) $ in Thousands | 12 Months Ended
--- | ---
Jan. 30, 2022 USD ($) segment | Jan. 31, 2021 USD ($) | Jan. 26, 2020 USD ($)
Segment Reporting Information [Line Items] |  |  |
Net sales | $ 740,858 | $ 595,117 | $ 547,512
Number of operating segments that aggregate into one reportable segment | segment | 3 |  |
Number of reportable segments | segment | 2 |  |
Net book value of equipment and machinery | $ 134,940 | 130,934 |
Machinery and equipment | Foundry in China |  |  |
Segment Reporting Information [Line Items] |  |  |
Net book value of equipment and machinery | 11,400 | 15,000 |
Machinery and equipment | Foundry In Malaysia [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net book value of equipment and machinery | $ 3,300 | $ 4,100 |
Net sales revenue |  |  |
Segment Reporting Information [Line Items] |  |  |
Minimum concentration risk threshold | 10.00% |  |

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