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Stockholders' Equity and Stock-Based Compensation (Tables)

3 Months Ended

Apr. 03, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

The following table shows stock-based compensation expense included in the condensed consolidated statements of operations for the three months ended April 3, 2021 and March 28, 2020:

	Three Months Ended
(in thousands)	April 3, 2021		March 28, 2020
Cost of revenues	$	47	$	24
Research and development		36		(31	)
Sales and marketing		98		39
General and administrative		185		63
	$	366	$	95

Summary of Stock Options

The following table summarizes stock options information during the three months ended April 3, 2021:

	Number of Shares			Weighted Average Exercise Price Per Share		Aggregate Intrinsic Value (thousands)
Outstanding as of January 2, 2021		1,649,540		$	4.67
Granted		16,000			4.90
Exercised		(3,082	)		5.29
Canceled or forfeited		(99,061	)		4.54
Outstanding as of April 3, 2021		1,563,397		$	4.68	$	4,538

Weighted Average Assumptions for Fair Value Estimate of Stock-Based Awards (Options)

The Company uses the Black-Scholes option-pricing model to estimate the fair value of stock-based awards (options) with the following weighted average assumptions:

	Three Months Ended
	April 3, 2021			March 28, 2020
Average risk free interest rate		0.74	%		0.46	%
Expected life (in years)	4.45 years			4.55 years
Dividend yield		—	%		—	%
Average volatility		72	%		57	%

Summary of Stock Options Outstanding, Vested, Expected to Vest and Exercisable

Information regarding stock options outstanding, vested, expected to vest, and exercisable as of April 3, 2021 is summarized below:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value (thousands)
Options outstanding		1,563,397	$	4.68		5.82	$	4,538
Options vested and expected to vest		1,353,572	$	4.78		5.61	$	3,875
Options exercisable		447,476	$	7.11		3.57	$	658

Restricted Stock Units

Information regarding RSUs activity for the three months ended April 3, 2021 is summarized below:

	Number of Shares
Outstanding as of January 2, 2021		524,851
RSUs granted		6,450
RSUs released		(2,833	)
RSUs forfeited		(54,312	)
Outstanding as of April 3, 2021		474,156