Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue:
Total revenue	$ 154,956	$ 155,042
Operating expenses:
Sales and marketing	31,719	32,792
Product development	20,880	20,183
General and administrative	33,433	30,159
Amortization of intangible assets	3,353	4,071
Total operating expenses	181,998	178,364
Loss from operations	(27,042)	(23,322)
Interest income	265	316
Interest expense	(40)	(11)
Other income (expense), net	40	(78)
Loss before income taxes	(26,777)	(23,095)
Income tax expense	(61)	(95)
Net loss	$ (26,838)	$ (23,190)
Net loss per share - basic and diluted (in dollars per share)	$ (1.03)	$ (0.94)
Weighted average number of shares - basic and diluted (in shares)	25,960	24,581
Product
Revenue:
Total revenue	$ 75,795	$ 83,458
Operating expenses:
Product and service costs (exclusive of amortization of intangible assets shown separately below)	57,104	61,991
Service
Revenue:
Total revenue	79,161	71,584
Operating expenses:
Product and service costs (exclusive of amortization of intangible assets shown separately below)	$ 35,509	$ 29,168