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Fair value measurements (Tables)
 12 Months Ended
Dec. 31, 2014
Fair Value Disclosures [Abstract]  
Schedule of Financial Instruments Measured at Fair Value

The following table sets forth the financial instruments, measured at fair value, by level within the fair value hierarchy as of December 31, 2013 and 2014.

 

     Fair value measurements as at December 31, 2013  

(In thousands)

    Total      Quoted prices
in active market
for indentifical
assets
(Level 1)		      Significant
other
observable
inputs
(Level 2)		      Significant
observable
inputs
(Level 3)		  

Cash equivalent: time deposits with original maturities less than three months

      30,892         —           30,892         —     

Short term investments:

            

Time deposits

      9,695         —           9,695         —     

Investments in financial instruments

      31,298         —           31,298         —     

Warrant liabilities

      (2,186 )       —           (2,186 )       —     
  

 

 

     

 

 

     

 

 

     

 

 

  
  69,699      —        69,699      —     
  

 

 

     

 

 

     

 

 

     

 

 

  
     Fair value measurements as at December 31, 2014  

(In thousands)

    Total      Quoted prices
in active market
for indentifical
assets
(Level 1)		      Significant
other
observable
inputs
(Level 2)		      Significant
observable
inputs
(Level 3)		  

Cash equivalent: time deposits with original maturities less than three months

      31,117         —           31,117         —     

Short term investments:

            

Investments in financial instruments

      29,426         —           29,426         —     
  

 

 

     

 

 

     

 

 

     

 

 

  
  60,543      —        60,543      —