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Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Numerator:
Net loss	$ (7,470)	$ (11,791)
Dividend on convertible exchangeable preferred shares	201	200
Beneficial conversion feature of Series A convertible stock	3,638	0
Conversion of Series A convertible preferred stock	3,537	0
Net loss attributable to common shareholders	$ (14,846)	$ (11,991)
Denominator:
Weighted average common shares outstanding (in shares)	7,631,152	3,424,976
Loss per share - basic and diluted (in dollars per share)	$ (1.95)	$ (3.50)

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Value of convertible preferred stock that was converted to other securities.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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