CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net revenue	$ 43,057	$ 40,609	$ 124,516	$ 120,351
Costs and expenses (exclusive of depreciation and amortization, shown separately below):
Cost of revenue	1,793	2,307	6,050	7,133
Product and content development	12,620	11,131	35,445	34,137
Sales and marketing	13,187	12,197	38,967	39,761
General and administrative	9,075	7,809	23,307	23,740
Depreciation and amortization	1,350	1,565	4,664	5,234
Total costs and expenses	38,025	35,009	108,433	110,005
Income from operations	5,032	5,600	16,083	10,346
Loss in equity interests	(24)	(33)	(67)	(1,204)
Interest and other income, net	246	161	657	359
Income before income taxes	5,254	5,728	16,673	9,501
Income tax expense	960	2,148	3,482	3,225
Net income	$ 4,294	$ 3,580	$ 13,191	$ 6,276
Net income per share:
Basic earnings per share (in dollars per share)	$ 0.17	$ 0.14	$ 0.52	$ 0.25
Diluted earnings per share (in dollars per share)	$ 0.17	$ 0.14	$ 0.51	$ 0.25
Weighted average number of shares used in calculating net income per share:
Basic (in shares)	25,220	24,858	25,130	25,054
Diluted (in shares)	26,011	25,124	25,717	25,353
Restricted stock
Weighted average number of shares used in calculating net income per share:
Dilutive securities included in dilutive shares (in shares)	339	226	306	262
Options
Weighted average number of shares used in calculating net income per share:
Dilutive securities included in dilutive shares (in shares)	452	40	278	35
Employee Stock Purchase Plan
Weighted average number of shares used in calculating net income per share:
Dilutive securities included in dilutive shares (in shares)	0	0	3	2