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COMMON STOCK - Schedule of Reserved shares of Common Stock For Issuance (Details) - shares | Dec. 29, 2024 | Dec. 31, 2023
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Class of Stock [Line Items] |  |
Total reserved shares of common stock | 31,707,440 | 36,190,848
Shares available for future issuance under the 2019 Equity Incentive Plan and 2021 Equity Incentive Plan |  |
Class of Stock [Line Items] |  |
Total reserved shares of common stock | 8,516,216 | 10,572,899
Shares reserved for achievement of Spyce milestones |  |
Class of Stock [Line Items] |  |
Total reserved shares of common stock | 500,000 | 714,285
Options |  |
Class of Stock [Line Items] |  |
Total reserved shares of common stock | 13,169,869 | 13,219,388
Shares reserved for employee stock purchase plan |  |
Class of Stock [Line Items] |  |
Total reserved shares of common stock | 4,111,331 | 4,111,331
RSUs and PSUs outstanding under the 2019 Equity Incentive Plan and 2021 Equity Incentive Plan |  |
Class of Stock [Line Items] |  |
Total reserved shares of common stock | 5,410,024 | 7,572,945

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