Short-term investments

12 Months Ended

Dec. 31, 2014

Short Term Investments Disclosure [Abstract]

Short Term Investments Disclosure [Text Block]

  4. Short-term investments

Short-term investments comprise time deposits with maturity terms of more than three months but due within one year. The carrying values of time deposits approximate fair value because of their short maturities. The interest earned is recognized in the consolidated statements of  income over the contractual term of the deposit.

As of December 31, 2014, the Company had pledged short-term investments of RMB33.0 million (equivalent to approximately $5.4 million) to secure loans under the credit facility issued by HSBC Bank (China) Company Limited Hong Kong branch (“HSBC HK”) and the use of the pledged short-term investments is restricted (See Note 13).