Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) (Parenthetical)

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Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) (Parenthetical)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
Income Statement [Abstract]  
Foreign currency translation adjustments $ 0