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CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Tables) | 3 Months Ended
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Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract] |
Schedule of Cash and Cash Equivalents and Short-Term Investments | The following table summarizes the fair value of cash and cash equivalents, and short-term investments as well as any gross unrealized holding gains and losses as of March 31, 2023. Due to the nature of these assets and the short-term nature of the U.S. treasury notes being held to maturity, both these cash and cash equivalents and short-term investments fall under the Level 1 fair value hierarchy as referenced in Note 2.
| As of March 31, 2023
Amortized cost |  | Gross unrealized holding gains |  | Gross unrealized holding losses |  | Estimated fair value
Cash and cash equivalents | $ | 5,355 |  |  | $ | — |  |  | $ | — |  |  | $ | 5,355 |
U.S. treasury notes (1) | 4,881 |  | 45 |  |  | (2) |  |  | 4,924
Total cash, cash equivalents and short-term investments | $ | 10,236 |  |  | $ | 45 |  |  | $ | (2) |  |  | $ | 10,279 |
(1) These U.S. treasury notes are classified as "held-to-maturity" as they were purchased in December 2022 and mature in July 2023. Since these securities are intended to be held until maturity and mature in less than a year from its purchase date, any unrealized gains or losses are not realized until its maturity date and the amortized cost of these securities can be found on this Form 10-Q's balance sheet under Current Assets - "Short-term investments". Any coupon payments from these short-term investments fall under "Interest and other (expense) income" on the Company's Statement of Operations.

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- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
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