Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-based compensation expense included in costs and expenses

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
	(in thousands)
Share-based compensation expense:
Cost of revenues	$	19	$	14	$	39	$	28
Sales and marketing [1]		402		341		814		974
Technology support [2]		134		98		262		429
General and administrative		389		418		841		807
Share-based compensation costs		944		871		1,956		2,238
Amount capitalized to internal use software		—		5		1		8
Total share-based compensation costs	$	944	$	866	$	1,955	$	2,230

Service based options granted during period

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Number of service-based options granted		54,000		62,500		373,250		491,400
Weighted average grant date fair value	$	6.56	$	6.75	$	6.86	$	7.94
Weighted average exercise price	$	13.05	$	14.18	$	13.70	$	16.75

Stock option exercises

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Number of stock options exercised		117,115		104,634		176,074		158,473
Weighted average exercise price	$	4.67	$	7.35	$	5.70	$	9.26

Fair value of stock options granted using the following weighted average assumptions

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Dividend yield		—			—			—			—
Volatility		62	%		59	%		61	%		58	%
Risk-free interest rate		1.7	%		1.1	%		1.8	%		1.3	%
Expected life (years)		4.4			4.4			4.4			4.4