Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2013
Fair Value Measurements  
Schedule of fair value of financial instruments measured on a recurring basis

The fair values of these financial assets and the redeemable preferred stock warrant were determined using the following inputs (in thousands):

 

 

 

Fair value measurements at

 

 

 

December 31, 2012 using

 

 

 

Level 1

 

Level 2

 

Level 3

 

Total

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

Money market funds

 

$

15,554

 

$

 

$

 

$

15,554

 

Other liabilities:

 

 

 

 

 

 

 

 

 

Redeemable preferred stock warrants

 

 

 

601

 

601

 

 

 

 

Fair value measurements at

 

 

 

September 30, 2013 using

 

 

 

Level 1

 

Level 2

 

Level 3

 

Total

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

Money market funds

 

$

79,004

 

$

 

$

 

$

79,004

 

Other liabilities:

 

 

 

 

 

 

 

 

 

Redeemable preferred stock warrants