Stock incentive plans (Tables)

6 Months Ended

Jun. 30, 2019

Schedule of stock-based compensation expense


	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Network operations	$	348	$	516	$	854	$	1,053
Development and technology		334		314		637		592
Selling and marketing		548		393		1,077		866
General and administrative		806		1,723		1,812		3,561
Total stock-based compensation	$	2,036	$	2,946	$	4,380	$	6,072

Summary of stock option activity


				Weighted-
				Average
		Weighted		Remaining
	Number of	Average		Contract	Aggregate
	Options	Exercise		Life	Intrinsic
	(000’s)	Price		(years)	Value
Outstanding at December 31, 2018	304	$	7.49	3.8	$	3,970
Exercised	(15)	$	5.47
Canceled/forfeited	—	$	—
Outstanding and exercisable at June 30, 2019	289	$	7.59	3.3	$	2,999

Summary of RSU activity


		Weighted Average
	Number of Shares	Grant-Date Fair
	(000’s)	Value
Non-vested at December 31, 2018	3,119	$	8.60
Granted(1)	593	$	22.76
Vested	(2,806)	$	7.21
Canceled/forfeited	(51)	$	23.31
Non-vested at June 30, 2019	855	$	22.08

(1)

The RSUs granted to all of our named executive officers in 2017 were subject to satisfaction of specified service-based and performance-based conditions. The performance objectives were subject to under- or over- achievement on a sliding scale, with a threshold of 50% of the target number of RSUs and a maximum of 150% of the target RSUs. In February 2019, our Compensation Committee determined actual achievement of the 2017 performance-based RSUs resulting in additional RSUs granted of approximately 29,000 at a grant-date fair value of $11.94 per share during the six months ended June 30, 2019.