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Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

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, 2018 and 2017 is as follows (in thousands):

		Three Months ended September 30,								Nine Months ended September 30,
		2018				2017				2018				2017
Cost of revenues		$	6			$	5			$	15			$	12
Sales and marketing			709				38				828				94
General and administrative			273				40				415				148
Research and development			40				14				106				41
Total		$	1,028			$	97			$	1,364			$	295

Summary of Stock Option Activity

The following table summarizes the Company’s stock option activity for the nine months ended September 30, 2018:

		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, 2017			2,444			$	2.39
Granted			535			$	7.19
Exercised			(29	)		$	1.58
Forfeited			(77	)		$	3.13
Outstanding at September 30, 2018			2,873			$	3.27				7.2			$	82,739
Exercisable at September 30, 2018			1,642			$	2.23				5.9			$	48,967
Vested and expected to vest at September 30, 2018			2,873			$	3.27				7.2			$	82,739

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

For the nine months ended September 30, 2018, 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		$	7.19
Exercise price		$	7.19
Expected term (in years)			6.0
Risk-free interest rate			2.7	%
Expected volatility			65.6	%
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, 2018:

		Non-vested Restricted Stock Awards (in thousands)				Weighted- average Grant-date Fair  Value				Non-vested Restricted Stock Units (in thousands)				Weighted- average Grant-date Fair  Value
Non-vested at December 31, 2017			16			$	2.32				-			$	-
Granted			-			$	-				38			$	25.92
Vested			(9	)		$	2.32				-			$	-
Non-vested at September 30, 2018			7			$	2.32				38			$	25.92

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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