Stockholders' Equity

3 Months Ended

Apr. 03, 2020

Share-based Payment Arrangement [Abstract]

Stockholders' Equity

Stockholders' Equity

Equity Incentive Plans

The following table summarizes the allocation of stock-based compensation in the accompanying consolidated statements of income:

	For the three months ended
	April 3, 2020		March 29, 2019
Cost of sales	$	129	$	129
Sales and marketing	152		126
Research and development	201		165
General and administrative	1,439		1,309
Total	$	1,921	$	1,729

The following table summarizes the activity for the Company's unvested restricted stock units ("RSU") for the three months ended April 3, 2020:

	Unvested RSUs
	Number of shares outstanding	Weighted-average grant date fair value
Unvested at January 3, 2020	427	$	44.98
Granted	43	$	54.94
Canceled	(3)	$	42.29
Vested	(81)	$	31.15
Unvested at April 3, 2020	386	$	49.01

As of April 3, 2020, the Company had approximately $14,299 of unrecognized stock-based compensation expense related to RSUs, which will be recognized over the remaining weighted-average vesting period of approximately 2.62 years.

During the three months ended April 3, 2020, no shares of common stock were issued due to the exercise of stock options and no options to purchase common stock expired or were forfeited. As of April 3, 2020, stock-based compensation expense related to stock options has been fully recognized.