CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Revenues	$ 52,424	$ 56,073	$ 157,014	$ 172,032
Operating expenses:
Cost of revenues	7,616	7,943	22,681	24,557
Product development	6,423	6,018	19,230	19,323
Sales and marketing	19,988	19,425	59,638	58,573
General and administrative	9,454	10,101	30,779	32,822
Depreciation	2,576	2,478	7,703	7,639
Amortization of intangible assets	554	1,570	1,686	6,106
Impairment of goodwill	0	15,369	0	15,369
Impairment of intangible assets	2,226	9,252	2,226	9,252
Disposition related and other costs (Note 9)	1,049	0	2,236	3,347
Total operating expenses	49,886	72,156	146,179	176,988
Operating income	2,538	(16,083)	10,835	(4,956)
Interest expense	(1,173)	(901)	(2,777)	(2,593)
Other expense	(3)	(1)	(10)	(33)
Income before income taxes	1,362	(16,985)	8,048	(7,582)
Income tax expense	304	(144)	3,828	3,294
Net income (loss)	$ 1,058	$ (16,841)	$ 4,220	$ (10,876)
Basic earnings (loss) per share (in dollars per share)	$ 0.02	$ (0.35)	$ 0.09	$ (0.22)
Diluted earnings (loss) per share (in dollars per share)	$ 0.02	$ (0.35)	$ 0.09	$ (0.22)
Weighted average basic shares outstanding	48,021	47,719	47,858	48,596
Weighted average diluted shares outstanding	48,502	47,719	48,397	48,596