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CONSOLIDATED BALANCE SHEETS (Parenthetical 2) - shares
Dec. 31, 2015
Mar. 01, 2015
Feb. 28, 2015
Dec. 31, 2014
Temporary Equity Disclosures        
Convertible preferred stock, shares authorized 0     8,060,923
Convertible preferred stock, shares issued 0     5,895,657
Convertible preferred stock, shares outstanding 0     5,895,657
Ordinary Stock Disclosures        
Ordinary stock, shares authorized 50,000,000 50,000,000 5,000,000 30,689,077
Ordinary stock, shares issued 13,585,810     502,224
Ordinary stock, shares outstanding 13,585,810     502,224