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Fair Value Of Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2020
Fair Value Of Financial Instruments [Abstract]  
Fair Value Of Financial Assets Measured On A Recurring Basis

June 30, 2020

December 31, 2019

Assets

Classification

Level 1

Level 2

Level 3

Total

Level 1

Level 2

Level 3

Total

Money market funds

Cash and cash equivalents

$

30,001 

$

$

$

30,001 

$

6,429 

$

$

$

6,429 

U.S. Treasury Securities

Investments

18,499 

18,499 

Total assets measured at fair value

$

30,001 

$

$

$

30,001 

$

6,429 

$

18,499 

$

$

24,928