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Stockholders' Equity (Tables)

12 Months Ended

Dec. 28, 2019

Equity [Abstract]

Share Activity and Total Number of Share Available for Grant

The following table represents the shares activity and the total number of shares available for grant under the Incentive Plan:

		Shares Available for Grant
Balances as of December 30, 2017			196,970
Additional shares reserved			1,000,000
Options granted			(178,435	)
Restricted stock granted			(628,125	)
Options cancelled			166,798
Awards cancelled			143,754
Balances as of December 29, 2018			700,962
Additional shares reserved			1,000,000
Options granted			(853,650	)
Restricted stock granted			(443,036	)
Options cancelled			314,786
Awards cancelled			388,461
Balances as of December 28, 2019			1,107,523

Stock-Based Compensation Expenses

The following table shows stock-based compensation expenses by functional area in the consolidated statements of operations for 2019 and 2018 (in thousands):

		FY 2019				FY 2018
		Year Ended				Year Ended
		December 28, 2019				December 29, 2018
Cost of revenues		$	75			$	47
Research and development			174				129
Sales and marketing			409				448
General and administrative			1,045				1,179
Total stock-based compensation expense		$	1,703			$	1,803

Summary of Activity in Stock Option Plan

Summary of Stock Options

The following table summarizes information regarding activity in our stock option plans during the fiscal years ended 2019 and 2018 (in thousands except share and per share data):

		Outstanding Options
		Number of Shares				Weighted Average Exercise Price
Balances as of December 30, 2017			857,311			$	9.49
Options granted			178,435				6.00
Options exercised			(24,050	)			4.09
Options cancelled or forfeited			(166,798	)			9.85
Balances as of December 29, 2018			844,898			$	8.84
Options granted			853,650				4.55
Options exercised			(210	)			3.49
Options cancelled or forfeited			(314,786	)			9.20
Balances as of December 28, 2019			1,383,552			$	6.11

Stock Options Outstanding and Exercisable

The following table summarizes information with respect to stock options outstanding and exercisable as of December 28, 2019:

		Options Outstanding												Options Vested and Exercisable
Range of Exercise Prices		Number of Shares Outstanding				Weighted Average Remaining Contractual Life (years)				Weighted Average Exercise Price				Number of Shares Exercisable				Weighted Average Exercise Price
$1.82 - $4.33			152,950				5.96			$	2.85				6,626			$	4.11
$4.60 - $4.85			40,062				4.78			$	4.73				15,062			$	4.74
$4.92 - $4.92			600,000				6.39			$	4.92				—			$	—
$4.98 - $5.88			171,788				5.80			$	5.38				49,521			$	5.55
$5.92 - $8.58			141,004				2.43			$	6.97				109,348			$	7.14
$8.60 - $9.54			144,750				2.47			$	9.28				104,940			$	9.27
$10.14 - $11.16			81,440				2.55			$	10.79				74,369			$	10.76
$12.85 - $12.85			15,000				3.83			$	12.85				11,875			$	12.85
$14.61 - $14.61			23,438				3.61			$	14.61				17,189			$	14.61
$16.29 - $16.29			13,120				2.48			$	16.29				12,132			$	16.29
$1.82 - $16.29			1,383,552				5.07			$	6.11				401,062			$	8.80

Weighted Average Assumptions for Fair Value of Options Granted

The determination of the fair value of options granted is computed using the Black-Scholes option pricing model with the following weighted average assumptions:

		Employee Stock Option Plan
		FY 2019				FY 2018
Average risk free interest rate			1.75	%			2.69	%
Expected life (in years)		4.55 years				4.55 years
Dividend yield			—				—
Average volatility			45.6	%			40.9	%

Stock Options Outstanding, Exercisable and Expected to Vest

Information regarding stock options outstanding, exercisable and expected to vest as of December 28, 2019 is summarized below:

		Number of				Weighted Average				Weighted Average Remaining Contractual				Aggregate Intrinsic Value
		Shares				Exercise Price				Life (years)				(thousands)
Options outstanding			1,383,552			$	6.11				5.07			$	12
Options vested and expected to vest			1,233,254			$	6.27				4.94			$	10
Options exercisable			401,062			$	8.80				2.62			$	—

Restricted Stock Units Outstanding, Vested and Expected to Vest

Information regarding the restricted stock units outstanding, vested and expected to vest as of December 28, 2019 is summarized below:

		Number of Shares				Weighted Average Remaining Contractual Life (years)				Aggregate Intrinsic Value (thousands)
Restricted stock units outstanding			411,133				1.27			$	966
Restricted stock units vested and expected to vest			350,639				1.21			$	824

Restricted Stock Units and Awards

Information regarding the RSU activity during the years ended December 28, 2019 and December 29, 2018 is summarized below:

		Number of Shares				Weighted Average Grant Date Fair Value
Outstanding as of December 30, 2017			361,148			$	10.42
Restricted stock units granted			418,750			$	7.79
Restricted stock units released			(86,941	)		$	7.38
Restricted stock units forfeited			(95,836	)		$	10.01
Outstanding as of December 29, 2018			597,121			$	9.08
Restricted stock units granted			295,357			$	2.28
Restricted stock units released			(222,371	)		$	4.32
Restricted stock units forfeited			(258,974	)		$	8.41
Outstanding as of December 28, 2019			411,133			$	7.19

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