Bank Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Schedule of bank loans
Bank loans	$ 44,841	$ 60,217
Industrial and Commercial Bank of China [Member]
Schedule of bank loans
Bank loans	16,940	11,375
Nanjing Bank [Member]
Schedule of bank loans
Bank loans	13,951	17,357
HSBC [Member]
Schedule of bank loans
Bank loans	3,129	$ 6,767
China Everbright Bank [Member]
Schedule of bank loans
Bank loans	3,121
Bank of Communications [Member]
Schedule of bank loans
Bank loans	3,080	$ 13,022
China Minsheng Banking [Member]
Schedule of bank loans
Bank loans	3,080	3,250
Pin An Bank [Member]
Schedule of bank loans
Bank loans	$ 1,540	3,868
Shanghai Pudong Development Bank [Member]
Schedule of bank loans
Bank loans		3,250
Bank of China [Member]
Schedule of bank loans
Bank loans		$ 1,328