Consolidated Statements Of Operations And Comprehensive Loss (Unaudited) - USD ($) shares in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Products and services revenue	$ 10,017,000	$ 10,842,000
License fees and royalty revenue	3,000	32,000
Net revenue	10,020,000	10,874,000
Cost of revenue	6,987,000	6,921,000
Gross profit	3,033,000	3,953,000
Operating expenses:
Sales and marketing	3,891,000	4,184,000
General and administrative	3,037,000	2,416,000
Engineering and development	1,289,000	1,429,000
Total operating expenses	8,217,000	8,029,000
Loss from operations	(5,184,000)	(4,076,000)
Gain (loss) on foreign currency transactions	207,000	(1,000)
Interest expense (income), net	(12,000)	9,000
Non-operating income, net	195,000	8,000
Loss before income tax provision	(4,989,000)	(4,068,000)
Income tax provision	32,000	40,000
Net loss	(5,021,000)	(4,108,000)
Other comprehensive income item:
Foreign currency translation adjustment	84,000	30,000
Comprehensive loss	$ (4,937,000)	$ (4,078,000)
Net loss per share:
Basic	$ (0.05)	$ (0.06)
Diluted	$ (0.05)	$ (0.06)
Shares used in the calculation of net loss per share:
Basic	102,347	67,583
Diluted	102,347	67,583