Annual report pursuant to Section 13 and 15(d)

Consolidated Statements Of Shareholders' Equity (Parenthetical)

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Consolidated Statements Of Shareholders' Equity (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Statement Of Stockholders Equity [Abstract]    
Convertible preferred stock and warrants, issuance cost $ 251 $ 480