CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) shares in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues, net		$ 18,224,000	$ 24,013,000	$ 57,299,000	$ 76,954,000
Cost of revenues		8,256,000	8,668,000	24,787,000	26,752,000
Gross profit		9,968,000	15,345,000	32,512,000	50,202,000
Operating expenses
Sales and marketing		6,630,000	7,581,000	20,016,000	25,973,000
Research and development		6,672,000	6,268,000	20,456,000	21,321,000
General and administrative		3,920,000	4,735,000	12,042,000	14,722,000
Impairment of goodwill		0	0	2,797,000	0
Total operating expenses		17,222,000	18,584,000	55,311,000	62,016,000
Loss from operations		(7,254,000)	(3,239,000)	(22,799,000)	(11,814,000)
Interest expense, net		(8,000)	(39,000)	(109,000)	(91,000)
Other (expenses) income, net		(136,000)	188,000	(336,000)	632,000
Loss before (provision for) benefit from income taxes		(7,398,000)	(3,090,000)	(23,244,000)	(11,273,000)
(Provision for) benefit from income taxes		(151,000)	37,000	(976,000)	(611,000)
Net loss		(7,549,000)	(3,053,000)	(24,220,000)	(11,884,000)
Foreign currency translation adjustments		585,000	(15,000)	1,923,000	86,000
Comprehensive loss		$ (6,964,000)	$ (3,068,000)	$ (22,297,000)	$ (11,798,000)
Net loss per share available to common stockholders, basic and diluted	[1]	$ (1.34)	$ (0.55)	$ (4.31)	$ (2.18)
Weighted-average shares used to compute net loss per share available to common stockholders, basic and diluted	[1]	5,651	5,503	5,625	5,456
Amortization of intangible assets is allocated as follows (Note 3):
Amortization of intangible assets		$ 700,000	$ 730,000	$ 2,151,000	$ 2,350,000
Restructuring related expenses are allocated as follows (Note 4):
Restructuring related expenses		0	24,000	0	449,000
Cost of Revenues [Member]
Stock-based compensation expense is allocated as follows (Note 8):
Allocation of stock-based compensation		166,000	285,000	629,000	1,015,000
Amortization of intangible assets is allocated as follows (Note 3):
Amortization of intangible assets		240,000	246,000	732,000	780,000
Restructuring related expenses are allocated as follows (Note 4):
Restructuring related expenses		0	24,000	0	175,000
Sales and Marketing [Member]
Stock-based compensation expense is allocated as follows (Note 8):
Allocation of stock-based compensation		197,000	162,000	609,000	1,083,000
Amortization of intangible assets is allocated as follows (Note 3):
Amortization of intangible assets		216,000	223,000	661,000	711,000
Restructuring related expenses are allocated as follows (Note 4):
Restructuring related expenses		0	2,000	0	213,000
Research and Development [Member]
Stock-based compensation expense is allocated as follows (Note 8):
Allocation of stock-based compensation		326,000	852,000	1,640,000	4,149,000
Amortization of intangible assets is allocated as follows (Note 3):
Amortization of intangible assets		239,000	246,000	730,000	780,000
Restructuring related expenses are allocated as follows (Note 4):
Restructuring related expenses		0	(4,000)	0	44,000
General and Administrative [Member]
Stock-based compensation expense is allocated as follows (Note 8):
Allocation of stock-based compensation		234,000	532,000	805,000	2,345,000
Amortization of intangible assets is allocated as follows (Note 3):
Amortization of intangible assets		5,000	15,000	28,000	79,000
Restructuring related expenses are allocated as follows (Note 4):
Restructuring related expenses		$ 0	$ 2,000	$ 0	$ 17,000

[1] All share and per share amounts of our common stock for all periods presented have been retroactively adjusted to reflect the one-for-seven reverse stock split of the Company’s issued and outstanding common stock, which took effect on October 5, 2017 (Note 1).