Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Revenues	$ 34,804	$ 39,145
Cost of revenues	4,009	4,546
Gross profit	30,795	34,599
Operating expenses:
Sales and marketing	18,959	22,077
Product development	2,875	3,089
General and administrative	5,813	6,451
Total operating expenses	27,647	31,617
Income from operations	3,148	2,982
Other income (loss)	133	(446)
Income before income taxes	3,281	2,536
Income taxes	1,232	1,806
Net income	$ 2,049	$ 730
Basic net income per share (in dollars per share)	$ 0.14	$ 0.05
Diluted net income per share (in dollars per share)	$ 0.14	$ 0.05
Shares used in computing basic net income per share	14,425	14,730
Shares used in computing diluted net income per share	14,425	14,730