Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2019

Summary of Restricted Stock Units Awarded

The following table summarizes the restricted stock units, or RSUs, awarded under the 2017 Plan for the period:

	Number of RSUs
Outstanding at January 1, 2019		206,061
Granted		634,985
Vested		(47,425	)
Forfeited		(31,596	)
Outstanding at June 30, 2019		762,025

Summary of Fair value of Company's Stock Options Granted

The fair values of the Company’s stock options granted during the six months ended June 30, 2019, were estimated using the following assumptions:

	2019 grants
Weighted average grant date fair value per share	$	38.11
Expected volatility		42	%
Expected term (in years)	6.25
Risk-free interest rate		1.80	%
Expected dividend yield		0	%

Summary of Stock-Based Compensation

The stock-based compensation expense was recorded as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Cost of revenue – software	$	279	$	8	$	343	$	16
Research and development		579		108		937		155
Sales and marketing		475		134		937		175
General and administrative		747		184		1,075		304
Total stock-based compensation expense	$	2,080	$	434	$	3,292	$	650

NSO Plan [Member]

Summary of Stock Option Activity

The following table summarizes the stock option activity under the NSO Plan for the period:

	Number of options			Weighted average exercise price per share		Weighted average remaining contractual term (years)		Aggregate intrinsic value (in millions)
Outstanding at January 1, 2019		4,337,856		$	0.000025		18.0	$	119.6
Exercised		(522,508	)	$	0.000025
Forfeited		—			—
Outstanding and exercisable at June 30, 2019		3,815,348		$	0.000025		17.5	$	154.1

ISO Plan [Member]

Summary of Stock Option Activity

The following table summarizes the stock option activity under the 2001 stock-based compensation plans for the period:

	Number of options			Weighted average exercise price per share		Weighted average remaining contractual term (years)		Aggregate intrinsic value (in millions)
Outstanding at January 1, 2019		532,220		$	0.65		1.4	$	14.3
Exercised		(218,693	)	$	0.67
Forfeited		—			—
Outstanding and exercisable at June 30, 2019		313,527		$	0.64		0.8	$	12.5

2012 Plan [Member]

Summary of Stock Option Activity

The following table summarizes the stock option activity under the 2012 Plan for the period:

	Number of options			Weighted average exercise price per share		Weighted average remaining contractual term (years)		Aggregate intrinsic value (in millions)
Outstanding at January 1, 2019		1,541,165		$	4.12		6.9	$	36.2
Granted		—			—
Exercised		(264,551	)	$	3.76
Forfeited		(3,303	)	$	4.44
Outstanding at June 30, 2019		1,273,311		$	4.20		6.5
Exercisable at June 30, 2019		892,645		$	3.94		6.1	$	32.5

2017 Plan [Member]

Summary of Stock Option Activity

The following table summarizes the stock option activity under the 2017 Plan for the period:

	Number of options		Weighted average exercise price per share		Weighted average remaining contractual term (years)		Aggregate intrinsic value (in millions)
Outstanding at January 1, 2019		—	$	—
Granted		20,000	$	38.11
Exercised		—	$	—
Forfeited		—	$	—
Outstanding at June 30, 2019		20,000	$	38.11		9.7
Exercisable at June 30, 2019		—	$	—		—	$	—