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Stockholders' Equity (Tables)
9 Months Ended
Oct. 02, 2021
Stockholders' Equity Note [Abstract]  
Disclosure of share-based compensation arrangements by share-based payment award
The following table summarizes stock-based compensation expense (in thousands):
 Three Months EndedNine Months Ended
October 2,
2021
September 26,
2020
October 2,
2021
September 26,
2020
Cost of revenue:
Products$211 $159 $559 $392 
Services177 103 483 308 
Sales and marketing1,791 1,035 4,961 2,994 
Research and development1,803 1,237 5,031 3,344 
General and administrative2,679 1,040 7,021 2,762 
$6,661 $3,574 $18,055 $9,800