Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue:
Product revenue	$ 15,349	$ 12,005	$ 29,933	$ 24,469
Service revenue	13,216	12,430	25,870	26,935
Total revenue	28,565	24,435	55,803	51,404
Operating expenses:
Product costs (exclusive of amortization of intangible assets shown separately below)	11,538	8,290	22,072	16,797
Service costs (exclusive of amortization of intangible assets shown separately below)	5,098	6,478	10,888	14,517
Sales and marketing	7,196	7,452	13,920	13,579
Product development	5,029	5,348	9,779	10,962
General and administrative	7,225	7,422	14,878	15,952
Amortization of intangible assets	1,396	3,114	3,233	6,146
Total operating expenses	37,482	38,104	74,770	77,953
Loss from operations	(8,917)	(13,669)	(18,967)	(26,549)
Interest income	39	23	82	25
Interest expense	(1)		(3)
Other (expense) income, net	(6)	38,182	(3)	39,162
(Loss) income before income taxes	(8,885)	24,536	(18,891)	12,638
Income tax expense	(80)	(69)	(92)	(80)
Net (loss) income	$ (8,965)	$ 24,467	$ (18,983)	$ 12,558
Net (loss) income per share
Basic (in dollars per share)	$ (0.44)	$ 1.20	$ (0.94)	$ 0.62
Diluted (in dollars per share)	$ (0.44)	$ 1.18	$ (0.94)	$ 0.61
Weighted average number of shares
Basic (in shares)	20,392	20,389	20,169	20,301
Diluted (in shares)	20,392	20,679	20,169	20,518