Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Weighted Average Assumptions Used to Estimate the Fair Value of Options Granted

The following table presents the weighted-average assumptions used to estimate the fair value of options granted during the periods indicated:

	Three Months Ended
	March 31, 2019
Weighted average grant date fair value	$	0.99
Expected dividend yield		—	%
Expected stock price volatility		61	%
Risk-free interest rate		2.6	%
Expected life of options (in years)		6.25

Schedule of Total Stock Based Compensation Expense

Total stock-based compensation expense included in the accompanying condensed consolidated statements of operations for the periods presented, is as follows (in thousands):

	Three Months Ended
	March 31,
	2019		2018
Technology and development	$	103	$	134
Sales and marketing		115		138
General and administrative		113		281
Total stock-based compensation expense	$	331	$	553

Summary of Stock Option Activity

Stock Option Activity – A summary of the stock option activity for the three months ended March 31, 2019 is presented below:

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value (in thousands)
Outstanding at January 1, 2019		7,669,093		$	2.51
Granted		120,200			1.68
Exercised		(24,819	)		1.49
Forfeited		(41,512	)		2.15
Expired		(167,847	)		2.61
Outstanding at March 31, 2019		7,555,115		$	2.50		6.26	$	58
Vested and expected to vest at March 31, 2019		7,410,324		$	2.50		6.21	$	58
Vested and exercisable at March 31, 2019		5,652,596		$	2.54		5.51	$	49

Summary of RSU Activity

RSU Activity —A summary of RSU activity for the three months ended March 31, 2019 is as follows:

	Number of Shares			Weighted Average Fair Value
Unvested—January 1, 2019		11,346		$	3.60
Granted		383,500			1.76
Released		(416	)		3.04
Forfeited		—			—
Unvested—March 31, 2019		394,430		$	1.81
Unvested expected to vest —March 31, 2019		394,430		$	1.81