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Marketable Securities
 12 Months Ended
Dec. 31, 2021
Investments Debt And Equity Securities [Abstract]  
Marketable Securities

4. Marketable Securities

The following table summarizes the Company’s marketable securities as of December 31, 2021 (in thousands):

 

 

 

December 31, 2021

 

 

 

Amortized Cost

 

 

Unrealized Gains

 

 

Unrealized Loss

 

 

Fair Value

 

Marketable securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate bonds

 

$

17,598

 

 

$

—

 

 

$

(74

)

 

$

17,524

 

Commercial paper

 

$

27,487

 

 

$

—

 

 

$

—

 

 

$

27,487

 

US Government debt securities

 

$

29,998

 

 

$

—

 

 

$

(94

)

 

$

29,904

 

Total

 

$

75,083

 

 

$

—

 

 

$

(168

)

 

$

74,915

 

 

There were no marketable securities as of December 31, 2020.

The weighted average maturity of the Company’s marketable securities as of December 31, 2021 ranges from approximately 0.2 years to 1.1 years.

The Company did not record an allowance for credit losses as of December 31, 2021 related to our marketable securities. Further, given the lack of significant change in the credit risk of these investments, the Company did not recognize any other-than-temporary impairment losses.