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Marketable Securities and Assets Measured at Fair Value (Tables)
9 Months Ended
Sep. 30, 2019
Marketable Securities and Assets Measured at Fair Value  
Schedule of composition of our marketable securities

Our marketable securities consist of certificates of deposit as follows:

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September 30, 2019

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December 31, 2018

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Cost

    

Fair Value

    

Cost

    

Fair Value

Total marketable securities

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$

741

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$

747

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$

2,463

​

$

2,470

Schedule of maturities of our marketable securities available for sale

The maturities of our marketable securities available for sale as of September 30, 2019 are as follows:

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Earliest

    

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Latest

Certificates of deposit

 

10/14/2019

 

to

 

7/28/2020

Schedule of fair value, assets measured on recurring basis

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September 30, 2019

    

Level 1

    

Level 2

    

Level 3

    

Total

Total marketable securities

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$

—

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$

747

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$

—

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$

747

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​

​

​

​

​

​

​

​

​

​

​

​

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December 31, 2018

    

Level 1

    

Level 2

    

Level 3

    

Total

Total marketable securities

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$

—

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$

2,470

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$

—

​

$

2,470