Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Activity for Stock Options

A summary of activity for the Company’s stock options for the year ended December 31, 2019 follows:

	Number Outstanding			Average Exercise Price per Share		Weighted Average Remaining Contractual Term (Years)		Average Intrinsic Value
Balance at December 31, 2018		621,602		$	5.87	6.32		$	—
Granted		—			—				—
Cancelled or Expired		(57,000	)		8.52				—
Exercised		(2,500	)		5.20				—
Balance at December 31, 2019		562,102		$	5.60		5.86	$	572,869
Vested or expected to vest at December 31, 2019		562,102		$	5.60		5.86	$	572,869
Exercisable at December 31, 2019		562,102		$	5.60		5.86	$	572,869

Summary Information about Stock Options Outstanding

The following table summarizes information about stock options outstanding as of December 31, 2019:

	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		465,310		6.30	$	4.45		465,310	$	4.45
$7.50 - $11.30		75,198		4.15		9.89		75,198		9.89
$12.00 - $19.70		17,244		2.50		13.60		17,244		13.60
$21.70 - $24.20		4,350		1.67		23.27		4,350		23.27
$4.36 - $24.20		562,102						562,102

Summary of Restricted Stock Unit (RSU) Activity

The following is a summary of restricted stock unit (“RSU”) activity for the year ended December 31, 2019:

	Number Outstanding			Weighted Average Fair Value
Balance at December 31, 2018		1,367,630		$	3.81
Granted		577,682			5.03
Vested		(659,170	)		3.62
Forfeited		(138,032	)		4.59
Balance at December 31, 2019		1,148,110			4.43
Shares vested but not released		202,940			5.27

Stock-Based Compensation Expense Related to Stock Options and RSUs

The following table summarizes stock-based compensation expense related to stock options and RSUs included in the consolidated statements of operations for the years ended December 31, 2019 and 2018 (in thousands):

	Year Ended December 31,
	2019		2018
Cost of revenue	$	128	$	89
Research and development		651		488
Selling and marketing		595		689
General and administrative		1,276		1,380
Total	$	2,650	$	2,646