Statement of Income (Statement) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenues	$ 36,633	$ 37,120
Operating expenses:
Cost of revenues	4,176	3,825
Product development	4,165	4,196
Sales and marketing	14,538	14,279
General and administrative	8,551	7,928
Depreciation	3,253	2,425
Impairment of fixed assets	7,200	0
Disposition related and other costs (Note 13)	0	875
Total operating expenses	41,883	33,528
Operating income (loss)	(5,250)	3,592
Interest expense and other	183	105
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount	2,002	0
Income (loss) before income taxes	(7,435)	3,487
Income tax expense (benefit)	(885)	1,899
Net income (loss)	$ (6,550)	$ 1,588
Basic earnings (loss) per share (in dollars per share)	$ (0.13)	$ 0.03
Diluted earnings (loss) per share (in dollars per share)	$ (0.13)	$ 0.03
Weighted average basic shares outstanding	49,134	48,103
Weighted average diluted shares outstanding	49,134	50,330