Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating expenses:
Research and development	$ 810	$ 373
Sales and marketing	16	204
General and administrative	1,344	1,185
Total operating expenses	2,170	1,762
Loss from operations	(2,170)	(1,762)
Other income (expense):
Interest income	3	7
Interest expense	(177)	(81)
Foreign exchange gain (loss)	(9)	9
Gain on write-off of accounts payable	29
Re-measurement of derivative liabilities	(1)	1
Other income (expense), net	(155)	(64)
Loss before income tax expense	(2,325)	(1,826)
(Benefit from) Provision for income taxes	6	(18)
Net loss	$ (2,331)	$ (1,808)
Basic and diluted net loss per common share	$ (0.12)	$ (0.15)
Weighted-average number of common shares used in basic and diluted net loss per common share	19,277,545	11,803,221