STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY - 3 months ended Mar. 31, 2018 - USD ($) $ in Thousands	Ordinary Shares	Additional paid-in capital	Accumulated deficit	Total
Balance, beginning at Dec. 31, 2017	$ 69	$ 136,117	$ (112,375)	$ 23,811
Balance, beginning (in shares) at Dec. 31, 2017	26,572,719
Increase (decrease) in Stockholders' Equity
Stock-based compensation		379		379
Net loss			(10,355)	(10,355)
Balance, ending at Mar. 31, 2018	$ 69	$ 136,496	$ (122,730)	$ 13,835
Balance, ending (in shares) at Mar. 31, 2018	26,572,719