Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statements of Operations [Abstract]
Net revenues	$ 66	$ 160	$ 211	$ 369
Cost of sales	59	65	150	244
Gross profit	7	95	61	125
Operating expenses:
Selling, marketing and research	128	91	756	599
Personnel and benefits	396	309	1,162	1,053
General and administrative	392	452	1,298	1,461
Total operating expenses	916	852	3,216	3,113
Operating loss	(909)	(757)	(3,155)	(2,988)
Other income		5		13
Interest expense	(2)	(1)	(3)	(1)
Net loss	$ (911)	$ (753)	$ (3,158)	$ (2,976)
Net loss per share attributable to common shareholders:
Basic and diluted	$ (0.12)	$ (0.13)	$ (0.45)	$ (0.52)
Weighted average number of common shares outstanding:
Basic and diluted	7,473,723	5,844,372	7,077,499	5,736,637