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Stock-based Compensation and Stockholders’ Equity - Summary of Stock-based Compensation by Income Statement Line Item (Details) - USD ($) $ in Thousands | 12 Months Ended
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May 30, 2021 | May 31, 2020 | May 26, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation | $ 3,360 | $ 2,419 | $ 3,560
Cost of sales |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation | 403 | 162 | 449
Research and development |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation | 223 | 158 | 114
Selling, general and administrative |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation | $ 2,734 | $ 2,099 | $ 2,997

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