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Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2022
Fair Value of Financial Instruments  
Summary of financial assets and liabilities subject to fair value measurements on a recurring basis

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September 30, 2022

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Level 1

    

Level 2

    

Level 3

    

Total

Assets

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​

​

  

​

​

  

​

​

  

Money market funds

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$

9,890

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$

—

​

$

—

​

$

9,890

Certificates of deposit

​

​

924

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​

—

​

​

—

​

​

924

Corporate debt securities

​

​

—

​

​

2,981

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​

—

​

​

2,981

U.S. Treasury securities

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​

62,916

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​

—

​

​

—

​

​

62,916

Total

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$

73,730

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$

2,981

​

$

—

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$

76,711

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December 31, 2021

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Level 1

    

Level 2

    

Level 3

    

Total

Assets

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​

​

  

​

​

  

​

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Money market funds

​

$

90,251

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$

—

​

$

—

​

$

90,251

Certificates of deposit

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​

1,672

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​

—

​

​

—

​

​

1,672

Corporate debt securities

​

​

—

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​

6,089

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​

—

​

​

6,089

U.S. Treasury securities

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​

45,568

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​

—

​

​

—

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​

45,568

Total

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$

137,491

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$

6,089

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$

—

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$

143,580