XML 37 R29.htm IDEA: XBRL DOCUMENT v2.4.1.9
Property, Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment  
Schedule of property, plant and equipment

 

    Useful lives in years from   December 31,  
    date of acquisition   2013     2014  
                 
Leasehold improvements   5 to 15 years   $ 922     $ 914  
Research and laboratory equipment   3 to 5 years     5,668       5,881  
Office equipment and furniture   3 to 5 years     1,338       1,302  
          7,928       8,097  
Less: accumulated depreciation and amortization         (7,653 )     (7,710 )
        $ 275     $ 387