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Fair Value of Financial Instruments (Tables)
 6 Months Ended
Jun. 30, 2016
Fair Value Disclosures [Abstract]  
Schedule of Assets Measured at Fair Value on a Recurring Basis

The following tables show assets measured at fair value on a recurring basis as of June 30, 2016 and December 31, 2015:

 

 

 

June 30, 2016

 

(in thousands)

 

Level 1

 

 

Level 2

 

 

Level 3

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

8,476

 

 

$

—

 

 

$

—

 

Corporate debt securities

 

 

—

 

 

 

2,503

 

 

 

—

 

Total cash equivalents

 

$

8,476

 

 

$

2,503

 

 

$

—

 

Marketable securities:

 

 

 

 

 

 

 

 

 

 

 

 

Commercial paper

 

$

—

 

 

$

20,979

 

 

$

—

 

Corporate debt securities

 

 

—

 

 

 

21,200

 

 

 

—

 

U.S. government agency securities

 

 

—

 

 

 

18,997

 

 

 

—

 

Total marketable securities

 

$

—

 

 

$

61,176

 

 

$

—

 

 

 

 

December 31, 2015

 

(in thousands)

 

Level 1

 

 

Level 2

 

 

Level 3

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

704

 

 

$

—

 

 

$

—

 

Total cash equivalents

 

$

704

 

 

$

—

 

 

$

—