Stock incentive plans (Tables)

3 Months Ended

Mar. 31, 2020

Stock incentive plans

Schedule of stock-based compensation expense

	Three Months Ended
	March 31,
	2020		2019
Network operations	$	348	$	506
Development and technology		158		303
Selling and marketing		422		529
General and administrative		609		1,006
Total stock-based compensation expense	$	1,537	$	2,344

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, 2019	235	$	7.67	2.6	$	870
Exercised	(26)	$	7.03
Canceled/forfeited	(19)	$	12.44
Outstanding and exercisable at March 31, 2020	190	$	7.26	2.7	$	693

Summary of RSU activity

		Weighted Average
	Number of Shares	Grant-Date Fair
	(000’s)	Value
Non-vested at December 31, 2019	633	$	22.04
Granted(1)(2)	731	$	10.50
Vested	(105)	$	20.23
Canceled/forfeited	(15)	$	22.05
Non-vested at March 31, 2020	1,244	$	15.41

(1) The performance-based RSUs granted to our executive officers in 2018 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 March 2020, our Compensation Committee determined actual achievement of the 2018 performance-based RSUs at 100.5% during the three months ended March 31, 2020.

(2) The performance-based RSUs granted to our executive officers in 2019 and 2020 were subject to satisfaction of specified service-based and performance-based conditions over a three-year performance period. Achievement of the revenue and Adjusted EBITDA goals for the 2019 and 2020 performance-based RSUs is based upon the budgets established for each of the years in the three-year performance period. As the Company approves budgets on an annual basis, the performance targets for the 2019 performance-based RSUs related to the 2020 and 2021 revenue and Adjusted EBITDA goals and the performance targets for the 2020 performance-based RSUs related to the 2021 and 2022 revenue and Adjusted EBITDA goals were not considered defined as of the date these awards were awarded by the Compensation Committee. The grant date requirements of ASC 718, Compensation―Stock Compensation, are therefore not met until such approval is obtained. During the three months ended March 31, 2020, the Company’s Compensation Committee approved the 2020 revenue and Adjusted EBITDA performance targets for the 2019 performance-based RSUs resulting in additional RSUs granted of approximately 36,000 at a grant-date fair value of $12.41 per share. As of March 31, 2020, 36,000 2019 performance-based RSUs and 178,000 2020 performance-based RSUs have been excluded from RSU shares granted and non-vested as the performance targets have not yet been defined.