Quarterly Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Net revenue	$ 18,865	$ 18,557	$ 21,605	$ 19,691	$ 20,395	$ 21,189	$ 20,073	$ 19,822	$ 78,718	$ 81,479	$ 92,448	[1]
Gross profit	13,900	13,214	15,318	13,122	13,804	13,954	13,422	12,751	55,554	53,931	52,928
Operating (loss) income	(4,757)	(4,459)	(3,166)	(8,249)	(6,660)	(8,746)	(8,251)	(15,086)	(20,631)	(38,743)	(71,258)
Net income (loss) from continuing operations	447	(4,532)	(3,779)	(9,550)	(10,203)	(3,334)	(8,826)	(15,410)	(17,414)	(37,773)	(83,462)
Income from discontinued operations, net of tax	392	198	393	126	227	278	479	239	1,109	1,223	1,615
Net income (loss)	$ 839	$ (4,334)	$ (3,386)	$ (9,424)	$ (9,976)	$ (3,056)	$ (8,347)	$ (15,171)	$ (16,305)	$ (36,550)	$ (81,847)
Basic EPS (in dollars per share)	$ 0.01	$ (0.12)	$ (0.10)	$ (0.26)	$ (0.28)	$ (0.09)	$ (0.24)	$ (0.42)	$ (0.47)	$ (1.02)	$ (2.31)
Basic net income (loss) per common share, Discontinued operations	0.01	0.00	0.01	0.01	0.01	0.01	0.01	0.00	0.03	0.03	0.05
Net income (loss) per share - basic	0.02	(0.12)	(0.09)	(0.25)	(0.27)	(0.08)	(0.23)	(0.42)	(0.44)	(0.99)	(2.26)
Diluted net income (loss) per share, Continuing operations	0.01	(0.12)	(0.10)	(0.26)	(0.28)	(0.09)	(0.24)	(0.42)	(0.47)	(1.02)	(2.31)
Diluted net income (loss) per share, Discontinued operations	0.01	0.00	0.01	0.01	0.01	0.01	0.01	0.00	0.03	0.03	0.05
Net income (loss) per share - diluted	$ 0.02	$ (0.12)	$ (0.09)	$ (0.25)	$ (0.27)	$ (0.08)	$ (0.23)	$ (0.42)	$ (0.44)	$ (0.99)	$ (2.26)
Domain Name
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of intangible asset						$ 2,000
Slingo
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of business	$ 4,500					$ 4,000

[1] December 31, 2017 December 31, 2016 December 31, 2015Components of Revenue License Fees28,919 27,846 28,422Service Revenue49,799 53,633 64,026Net Revenue78,718 81,479 92,448