Stockholders' Equity and Stock-Based Compensation (Tables)

3 Months Ended

Apr. 02, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation Expenses

The following table shows stock-based compensation expense included in the condensed consolidated statements of operations for the three months ended April 2, 2022 and April 3, 2021:

	Three Months Ended
(in thousands)	April 2, 2022		April 3, 2021
Cost of revenues	$	60	$	47
Research and development		29		36
Sales and marketing		122		98
General and administrative		173		185
	$	384	$	366

Summary of Stock Options

The following table summarizes stock options information during the three months ended April 2, 2022:

	Number of Shares			Weighted Average Exercise Price Per Share		Aggregate Intrinsic Value (thousands)
Outstanding as of January 1, 2022		1,772,621		$	5.07
Granted		42,200			4.73
Exercised		(6,063	)		2.25
Canceled or forfeited		(66,841	)		9.41
Outstanding as of April 2, 2022		1,741,917		$	4.91	$	1,204

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 2, 2022			April 3, 2021
Average risk free interest rate		2.43	%		0.74	%
Expected life (in years)	4.5			4.45
Dividend yield		—	%		—	%
Average volatility		76	%		72	%

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 2, 2022 is summarized below:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value (thousands)
Options outstanding		1,741,917	$	4.91		5.45	$	1,204
Options vested and expected to vest		1,637,953	$	4.90		5.39	$	1,157
Options exercisable		662,311	$	5.30		4.41	$	414

Restricted Stock Units

Information regarding RSUs activity for the three months ended April 2, 2022 is summarized below:

	Number of Shares
Outstanding as of January 1, 2022		253,761
RSUs granted		—
RSUs released		(4,937	)
RSUs forfeited		—
Outstanding as of April 2, 2022		248,824