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Fair Value Measurements
6 Months Ended
Jun. 30, 2018
Fair Value Disclosures [Abstract]  
Fair Value Measurements

4. Fair Value Measurements

The Company’s financial instruments consist principally of cash and cash equivalents, prepaid expenses, accounts payable and accrued liabilities. The following table sets forth the Company’s financial instruments that were measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands):

 

 

Fair Value Measurements at June 30, 2018

 

 

(unaudited)

 

 

Total

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

Assets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

$

55,862

 

 

$

55,862

 

 

$

 

 

$

 

 

$

55,862

 

 

$

55,862

 

 

$

 

 

$

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fair Value Measurements at December 31, 2017

 

 

Total

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

Assets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

$

62,428

 

 

$

62,428

 

 

$

 

 

$

 

 

$

62,428

 

 

$

62,428

 

 

$

 

 

$