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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenues	$ 28,184	$ 28,075	$ 59,009	$ 58,959
Cost of revenues	2,757	3,016	5,703	6,401
Gross profit	25,427	25,059	53,306	52,558
Operating expenses:
Sales and marketing	15,357	15,628	30,963	31,170
Product development	1,799	2,386	3,502	4,897
General and administrative	5,847	5,967	11,446	11,756
Total operating expenses	23,003	23,981	45,911	47,823
Income from operations	2,424	1,078	7,395	4,735
Other income (expense), net	(143)	30	(242)	191
Income before income taxes	2,281	1,108	7,153	4,926
Income tax expense	953	631	2,705	1,947
Net income	$ 1,328	$ 477	$ 4,448	$ 2,979
Net income per share - basic (in dollars per share)	$ 0.11	$ 0.04	$ 0.37	$ 0.24
Net income per share - diluted (in dollars per share)	$ 0.11	$ 0.04	$ 0.36	$ 0.24
Shares used in computing basic net income (loss) per share (in shares)	12,003	12,462	11,959	12,462
Shares used in computing diluted net income (loss) per share (in shares)	12,278	12,780	12,251	12,622

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