CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Revenues	$ 7,258	$ 17,998	$ 29,734	$ 58,595
Cost of revenues	1,487	4,341	7,595	13,914
Gross profit	5,771	13,657	22,139	44,681
Operating expenses:
Engineering and product development	326	239	983	967
Selling and marketing	4,529	14,277	18,757	46,371
General and administrative	2,894	3,450	9,791	12,463
Impairment of goodwill and intangible assets	3,518		3,518
Loss on sale of assets	1,731		2,574
Total operating expenses	12,998	17,966	35,623	59,801
Loss from continuing operations before interest and other financing expense, net	(7,227)	(4,309)	(13,484)	(15,120)
Interest and other financing income (expense), net	88	(332)	(537)	(936)
Loss from continuing operations before income taxes	(7,139)	(4,641)	(14,021)	(16,056)
Income tax benefit (expense)	(278)	(658)	(506)	2,919
Loss from continuing operations	(7,417)	(5,299)	(14,527)	(13,137)
Discontinued operations:
Loss from discontinued operations, net of taxes			(125)	(6,708)
Gain on sale of discontinued operations, net of taxes		190		10,783
Net loss	$ (7,417)	$ (5,109)	$ (14,652)	$ (9,062)
Basic and diluted net loss per share:
Continuing operations (in dollars per share)	$ (1.78)	$ (1.23)	$ (3.48)	$ (3.29)
Discontinued operations (in dollars per share)		0.04	(0.03)	1.02
Basic (in dollars per share)	$ (1.78)	$ (1.19)	$ (3.51)	$ (2.27)
Shares used in computing basic and diluted net loss per share	4,157,917	4,297,766	4,173,146	3,991,725
Other comprehensive (loss) income:
Foreign currency translation adjustments	$ (157)	$ (745)	$ (915)	$ (568)
Comprehensive loss	$ (7,574)	$ (5,854)	$ (15,567)	$ (9,630)