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Marketable Securities | 12 Months Ended
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Dec. 31, 2022
Investments Debt And Equity Securities [Abstract] |
Marketable Securities | 4. Marketable Securities The following table summarizes the Company’s marketable securities as of December 31, 2022 (in thousands):
|  | December 31, 2022 |
|  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Loss |  |  | Fair Value |
Marketable securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | 34,662 |  |  | $ | — |  |  | $ | (135 | ) |  | $ | 34,527 |
Commercial paper |  | $ | 8,019 |  |  | $ | — |  |  | $ | (41 | ) |  | $ | 7,978 |
US Government debt securities |  | $ | 74,533 |  |  | $ | — |  |  | $ | (999 | ) |  | $ | 73,534 |
Total |  | $ | 117,214 |  |  | $ | — |  |  | $ | (1,175 | ) |  | $ | 116,039 |
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 |
The weighted average maturity of the Company’s marketable securities as of December 31, 2022 ranges from approximately 0.184 years to 0.489 years. The Company did not record an allowance for credit losses as of December 31, 2022 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.

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2176304 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) + Details
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