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Convertible Loan, Related Party - Summary of Convertible Loan (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Debt Disclosure [Abstract]    
Debt principal $ 8,000 $ 8,000
Unamortized discount (1,846) (3,655)
Carrying value of convertible loan, end of period $ 6,154 $ 4,345