Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Share-Based Compensation Expense

The amount of share-based compensation expense recognized by the Company by location in its statements of operations for the three and nine months ended September 30, 2020 and 2019 is as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Cost of revenues	$	17	$	18	$	48	$	47
Sales and marketing		370		368		1,036		976
General and administrative		572		429		1,440		1,126
Research and development		87		119		364		309
Total	$	1,046	$	934	$	2,888	$	2,458

Summary of Stock Option Activity

The following table summarizes the Company’s stock option activity for the nine months ended September 30, 2020:

	Number of Shares under Option (in thousands)			Weighted- average Exercise Price per Option		Weighted- average Remaining Contractual Life (in years)		Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2019		2,415		$	7.11
Granted		1,029		$	2.01
Exercised		(230	)	$	2.32
Forfeited		(620	)	$	10.74
Outstanding at September 30, 2020		2,594		$	4.64		7.0	$	5,535
Exercisable at September 30, 2020		1,850		$	4.79		4.1	$	2,495
Vested and expected to vest at September 30, 2020		2,594		$	4.64		7.0	$	5,535

Summary of Weighted-average Inputs and Assumptions used to Estimate Grant-date Fair Value of Stock Options

For the nine months ended September 30, 2020, the grant-date fair value of stock options was estimated at the time of grant using the following weighted-average inputs and assumptions in the Black-Scholes option pricing model:

Estimated fair value of common stock	$	2.01
Exercise price	$	2.01
Expected term (in years)		6.1
Risk-free interest rate		0.38	%
Expected volatility		55.3	%
Dividend yield		0	%

Summary of Restricted Stock Award and Restricted Stock Unit Activity

The following table summarizes the Company’s restricted stock award and restricted stock unit activity for the nine months ended September 30, 2020:

	Non-vested Restricted Stock Units (in thousands)			Weighted- average Grant-date Fair Value
Non-vested at December 31, 2019		245		$	15.23
Granted		2,155		$	3.05
Vested		(87	)	$	14.13
Forfeited		(463	)	$	5.22
Non-vested at September 30, 2020		1,850		$	3.60