STOCK-BASED COMPENSATION - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Jan. 01, 2023 |
Jan. 02, 2022 |
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Total stock-based compensation expense | $ 18,326 | $ 14,580 | $ 7,231 |
| Cost of revenue | |||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Total stock-based compensation expense | 989 | 1,535 | 1,250 |
| Research and development | |||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Total stock-based compensation expense | 3,279 | 1,513 | 352 |
| Sales, general and administrative | |||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Total stock-based compensation expense | $ 14,058 | $ 11,532 | $ 5,629 |