Statement of Income (Statement) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenues	$ 33,784	$ 37,359	$ 70,417	$ 74,479
Operating expenses:
Cost of revenues	4,159	3,916	8,335	7,741
Product development	3,774	4,391	7,939	8,587
Sales and marketing	12,297	13,774	26,835	28,053
General and administrative	8,082	7,790	16,633	15,718
Depreciation	3,019	2,361	6,272	4,786
Impairment of fixed assets	0		7,200	0
Disposition related and other costs (Note 13)	0	825	0	1,700
Total operating expenses	31,331	33,057	73,214	66,585
Loss on sale of business	0	(537)	0	(537)
Operating income (loss)	2,453	3,765	(2,797)	7,357
Interest expense and other	161	219	344	324
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount	0	0	2,002	0
Income (loss) before income taxes	2,292	3,546	(5,143)	7,033
Income tax expense (benefit)	430	485	(455)	2,384
Net income (loss)	$ 1,862	$ 3,061	$ (4,688)	$ 4,649
Basic earnings (loss) per share (in dollars per share)	$ 0.04	$ 0.06	$ (0.10)	$ 0.10
Diluted earnings (loss) per share (in dollars per share)	$ 0.04	$ 0.06	$ (0.10)	$ 0.09
Weighted average basic shares outstanding	48,427	48,918	48,781	48,513
Weighted average diluted shares outstanding	49,691	51,875	48,781	51,139