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Segment Information - Summary Financial Infomation by reportable segments (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 02, 2021 USD ($) | Jun. 26, 2020 USD ($) | Jul. 02, 2021 USD ($) segment | Jun. 26, 2020 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue | [1] | $ 113,448 | $ 73,994 | $ 225,024 | $ 152,411
Gross Profit |  | 60,505 | 37,773 | 115,650 | 74,511
Operating income (loss) |  | 2,136 | (9,554) | $ (1,708) | (27,603)
Number of Reportable Segments | segment |  |  |  | 2 |
Operating Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue |  | 113,448 | 73,994 | $ 225,024 | 152,411
Gross Profit |  | 61,109 | 38,152 | 117,291 | 76,473
Operating income (loss) |  | 6,551 | (5,115) | 11,619 | (14,647)
Operating Segments [Member] | Video [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue |  | 63,355 | 47,453 | 133,686 | 101,825
Gross Profit |  | 37,571 | 26,024 | 76,345 | 53,931
Operating income (loss) |  | 1,559 | (4,237) | 5,331 | (10,504)
Operating Segments [Member] | Cable Access [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue |  | 50,093 | 26,541 | 91,338 | 50,586
Gross Profit |  | 23,538 | 12,128 | 40,946 | 22,542
Operating income (loss) |  | $ 4,992 | $ (878) | $ 6,288 | $ (4,143)
[1] | Revenue is attributed to countries based on the location of the customer.

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