CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - 3 months ended Mar. 31, 2018 - USD ($) $ in Thousands	Common Stock	Additional Paid In Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Total
Balance at the beginning of the period (in shares) at Dec. 31, 2017	12,354,014
Increase (Decrease) in Shares Outstanding
Issuance of stock (in shares)	2,146,667
Balance at the end of the period (in shares) at Mar. 31, 2018	14,500,681
Balance at the beginning of the period at Dec. 31, 2017	$ 12	$ 141,770	$ (268)	$ (130,397)	$ 11,117
Increase (Decrease) in Stockholders' Equity
Issuance of common stock upon exercise of stock options	3	14,792			14,795
Foreign currency translation adjustment			110		110
Stock-based compensation		728			728
Net loss				(10,622)	(10,622)
Balance at the end of the period at Mar. 31, 2018	$ 15	$ 157,290	$ (158)	$ (141,019)	$ 16,128