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Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2015
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets Measured on Recurring Basis
The following table presents information about our assets measured at fair value on a recurring basis in the condensed consolidated balance sheets as of June 30, 2015 and December 31, 2014:  
 
Level 1
 
Level 2
 
Level 3
 
Total
As of June 30, 2015:
 
 
 
 
 
 
 
Money market funds
$
12,989

 
$

 
$

 
$
12,989

 
 
 
 
 
 
 
 
As of December 31, 2014:
 
 
 
 
 
 
 
Money market funds
$
17,480

 
$

 
$

 
$
17,480