Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Activity for Stock Options

A summary of activity for the Company’s stock options for the year ended December 31, 2020 follows:

	Number Outstanding			Average Exercise Price per Share		Weighted Average Remaining Contractual Term (Years)		Average Intrinsic Value
Balance at December 31, 2019		562,102		$	5.60	5.86		$	572,869
Granted		—			—				—
Cancelled or Expired		(8,833	)		8.17				—
Exercised		(2,500	)		5.20				—
Balance at December 31, 2020		550,769		$	5.56		4.88	$	1,875,719
Vested or expected to vest at December 31, 2020		550,769		$	5.56		4.88	$	1,875,719
Exercisable at December 31, 2020		550,769		$	5.56		4.88	$	1,875,719

Summary Information about Stock Options Outstanding

The following table summarizes information about stock options outstanding as of December 31, 2020:

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
$4.36 - $7.20		459,610		5.32	$	4.43		459,610	$	4.43
$7.50 - $11.25		70,698		3.05		9.95		70,698		9.95
$11.30 - $16.95		13,764		1.65		12.90		13,764		12.90
$17.60 - $26.40		6,697		0.74		21.55		6,697		21.55
$4.36 - $26.40		550,769		4.88	$	5.56		550,769	$	5.56

Summary of Stock Unit Activity

The following is a summary of RSU activity for the year ended December 31, 2020:

	Number Outstanding			Weighted Average Fair Value
Unvested as of December 31, 2019		1,148,110		$	4.43
Granted		508,928			4.28
Vested		(726,968	)		4.31
Forfeited		(247,507	)		4.71
Unvested as of December 31, 2020		682,563		$	4.34
Shares vested but not released		298,100		$	5.05

Stock-Based Compensation Expense Related to Stock Options, RSUs and PSUs

The following table summarizes stock-based compensation expense related to stock options, RSUs, and PSUs included in the consolidated statements of comprehensive loss for the years ended December 31, 2020 and 2019 (in thousands):

	Year Ended December 31,
	2020		2019
Cost of revenue	$	160	$	128
Research and development		685		651
Selling and marketing		480		595
General and administrative		1,702		1,276
Total	$	3,027	$	2,650

Performance Stock Units

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Stock Unit Activity

The following is a summary of PSU activity for the year ended December 31, 2020:

	Number Outstanding		Fair Value
Unvested as of December 31, 2019		—	$	—
Granted		200,000		6.38
Vested		—		—
Forfeited		—		—
Unvested as of December 31, 2020		200,000	$	6.38