v3.21.1

NATURE OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES - Revision of Prior Financial Statements (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 03, 2021 | Dec. 29, 2019
Revision of prior financial statements |  |
Revenue | $ 121,437 | $ 83,555
Operating expenses | $ 36,984 | $ 22,555
Revision, DSP fees |  |
Revision of prior financial statements |  |
Gain (loss) from operations as a percentage of revenue |  | (1.90%)
Revision, DSP fees | Previously Reported |  |
Revision of prior financial statements |  |
Gain (loss) from operations as a percentage of revenue |  | (2.00%)
Revision, DSP fees | Revision of Prior Period, Reclassification, Adjustment |  |
Revision of prior financial statements |  |
Revenue |  | $ 1,300
Operating expenses |  | $ 1,300

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