Statement of Income (Statement) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenues	$ 33,250	$ 37,176	$ 103,667	$ 111,655
Operating expenses:
Cost of revenues	4,249	4,250	12,584	11,991
Product development	4,029	4,121	11,968	12,708
Sales and marketing	11,715	13,615	38,550	41,668
General and administrative	7,402	7,502	24,035	23,220
Depreciation	2,807	2,415	9,079	7,201
Impairment of intangible assets	8,000		15,200	0
Impairment of goodwill	23,626	0	23,626	0
Disposition related and other costs (Note 13)	0	0	0	1,700
Total operating expenses	61,828	31,903	135,042	98,488
Loss on sale of business	0	0	0	(537)
Operating income (loss)	(28,578)	5,273	(31,375)	12,630
Interest expense and other	274	188	618	512
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount	0	0	2,002	0
Income (loss) before income taxes	(28,852)	5,085	(33,995)	12,118
Income tax expense (benefit)	(1,530)	704	(1,985)	3,088
Net income (loss)	$ (27,322)	$ 4,381	$ (32,010)	$ 9,030
Basic earnings (loss) per share (in dollars per share)	$ (0.57)	$ 0.09	$ (0.66)	$ 0.19
Diluted earnings (loss) per share (in dollars per share)	$ (0.57)	$ 0.08	$ (0.66)	$ 0.18
Weighted average basic shares outstanding	47,955	48,974	48,503	48,668
Weighted average diluted shares outstanding	47,955	52,137	48,503	51,598