Other Payables and Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Summary of other payables and accrued liabilities
Accrued professional fees		$ 70
Advance from customers	872	1,205
Accrued wages and welfare	5,547	7,554
Other payables	8,588	13,392
Total other payables and accrued liabilities	$ 15,007	$ 22,221