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SHORT-TERM INVESTMENTS | 12 Months Ended
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Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract] |
SHORT-TERM INVESTMENTS | SHORT-TERM INVESTMENTSThe following tables summarize the estimated fair value of the Company’s short-term investments and the gross unrealized holding gains and losses as of December 31, 2022 and 2021 (in thousands):
| As of December 31, 2022
| Amortized cost |  | Unrealized gain |  | Unrealized Loss |  | Estimated Fair Value
Corporate debt securities | $ | 17,056 |  |  | $ | — |  |  | $ | (164) |  |  | $ | 16,892 |
Commercial paper | 18,922 |  |  | — |  |  | — |  |  | 18,922 |
U.S. government bonds | 106,774 |  |  | — |  |  | (1,515) |  |  | 105,259 |
Certificate of deposits | 9,986 |  |  | — |  |  | — |  |  | 9,986 |
Treasury bills | 9,518 |  |  | 3 |  |  | (5) |  |  | 9,516 |
Agency bonds | 1,500 |  |  | — |  |  | (1) |  |  | 1,499 |
Total short-term investments | $ | 163,756 |  |  | $ | 3 |  |  | $ | (1,685) |  |  | $ | 162,074 |
| As of December 31, 2021
| Amortized cost |  | Unrealized gain |  | Unrealized Loss |  | Estimated Fair Value
Corporate debt securities | $ | 42,174 |  |  | $ | 11 |  |  | $ | (52) |  |  | $ | 42,133 |
Commercial paper | 20,743 |  |  | — |  |  | — |  |  | 20,743 |
U.S. government bonds | 86,265 |  |  | — |  |  | (135) |  |  | 86,130 |
Certificate of deposits | 21,501 |  |  | 6 |  |  | — |  |  | 21,507 |
Agency bonds | 2,500 |  |  | — |  |  | (5) |  |  | 2,495 |
Total short-term investments | $ | 173,183 |  |  | $ | 17 |  |  | $ | (192) |  |  | $ | 173,008 |
The following table presents the contractual maturities of the Company’s short-term investments as of December 31, 2022 (in thousands):
|  |  |  |  | As of December 31, 2022
|  |  |  |  | Amortized cost |  | Estimated Fair Value
Due within one year |  |  |  |  | $ | 98,136 |  |  | $ | 97,732 |
Due between one to two years |  |  |  |  | 65,620 |  |  | 64,342 |
Total |  |  |  |  | $ | 163,756 |  |  | $ | 162,074 |
The Company periodically reviews the individual securities that have unrealized losses on a regular basis to evaluate whether or not any security has experienced, or is expected to experience, credit losses resulting in the decline in fair value. The Company evaluates, among other factors, whether the Company intends to sell any of these marketable securities and whether it is more likely than not that the Company will be required to sell any of them before recovery of the amortized cost basis. During the year ended December 31, 2022, the Company did not record an allowance for credit losses, as management believes any such losses would be immaterial based on the investment-grade credit rating for each of the short-term investments as of the end of each period.

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- Definition The entire disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 + Details
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