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Share-Based Compensation (Tables)

6 Months Ended

Jun. 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 six months ended June 30, 2020 and 2019 is as follows (in thousands):

		Three Months Ended June 30,								Six Months Ended June 30,
		2020				2019				2020				2019
Cost of revenues		$	15			$	19			$	31			$	29
Sales and marketing			236				404				666				608
General and administrative			261				479				868				697
Research and development			134				120				277				189
Total		$	646			$	1,022			$	1,842			$	1,523

Summary of Stock Option Activity

The following table summarizes the Company’s stock option activity for the six months ended June 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			28			$	2.94
Exercised			(98	)		$	1.28
Forfeited			(480	)		$	11.16
Outstanding at June 30, 2020			1,865			$	6.31				5.2			$	527
Exercisable at June 30, 2020			1,312			$	4.63				3.8			$	527
Vested and expected to vest at June 30, 2020			1,865			$	6.31				5.2			$	527

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

For the six months ended June 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		$	2.94
Exercise price		$	2.94
Expected term (in years)			6.1
Risk-free interest rate			1	%
Expected volatility			55	%
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 six months ended June 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			1,504			$	3.40
Vested			(66	)		$	15.26
Forfeited			(394	)		$	5.34
Non-vested at June 30, 2020			1,289			$	4.45

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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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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