Bank Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of short term bank loans
Bank loans	$ 32,212	$ 29,232
Industrial and Commercial Bank of China [Member]
Schedule of short term bank loans
Bank loans	17,122	11,232
Nanjing Bank [Member]
Schedule of short term bank loans
Bank loans	2,902	9,360
Bank of Communications [Member]
Schedule of short term bank loans
Bank loans	2,902	2,880
China Minsheng Bank [Member]
Schedule of short term bank loans
Bank loans	2,902	2,880
China Everbright Bank [Member]
Schedule of short term bank loans
Bank loans	2,902	2,880
Bank of China [Member]
Schedule of short term bank loans
Bank loans	2,176
China Citic Bank [Member]
Schedule of short term bank loans
Bank loans	$ 1,306