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v3.23.1

Supplementary Balance Sheet Information (Tables) | 3 Months Ended
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Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Investments Available-for-sale | Investments available for sale consist of the following:
| As of March 31, 2023
(in thousands) | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Market Value
Maturity less than 1 year: |  |  |  |  |  |  |
Certificate of deposit | $ | 13,964 |  |  | $ | 1 |  |  | $ | (40) |  |  | $ | 13,925 |
Corporate debt securities | 22,258 |  |  | 4 |  |  | (118) |  |  | 22,144 |
Commercial paper | 10,402 |  |  | 3 |  |  | (7) |  |  | 10,398 |
U.S. government agencies | 4,049 |  |  | 4 |  |  | — |  |  | 4,053 |
Total maturity less than 1 year | 50,673 |  |  | 12 |  |  | (165) |  |  | 50,520 |
Maturity 1 to 2 years: |  |  |  |  |  |  |
Corporate debt securities | 10,687 |  |  | 24 |  |  | (27) |  |  | 10,684 |
U.S. government agencies | 3,781 |  |  | 8 |  |  | — |  |  | 3,789 |
U.S. treasury securities | 16,886 |  |  | 72 |  |  | — |  |  | 16,958 |
Total maturity 1 to 2 years | 31,354 |  |  | 104 |  |  | (27) |  |  | 31,431 |
Total short-term investments | $ | 82,027 |  |  | $ | 116 |  |  | $ | (192) |  |  | $ | 81,951 |
| As of December 31, 2022
(in thousands) | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Market Value
Maturity less than 1 year: |  |  |  |  |  |  |
Certificate of deposit | $ | 16,101 |  |  | $ | 3 |  |  | $ | (81) |  |  | $ | 16,023 |
Corporate debt securities | 44,806 |  |  | 8 |  |  | (275) |  |  | 44,539 |
Commercial paper | 13,203 |  |  | 4 |  |  | (20) |  |  | 13,187 |
Non U.S. government | 2,284 |  |  | 4 |  |  | — |  |  | 2,288 |
U.S. treasury securities | 7,905 |  |  | — |  |  | (18) |  |  | 7,887 |
Total maturity less than 1 year | 84,299 |  |  | 19 |  |  | (394) |  |  | 83,924 |
Maturity 1 to 2 years: |  |  |  |  |  |  |
Corporate debt securities | 5,016 |  |  | 1 |  |  | (21) |  |  | 4,996 |
Total maturity 1 to 2 years | 5,016 |  |  | 1 |  |  | (21) |  |  | 4,996 |
Total short-term investments | $ | 89,315 |  |  | $ | 20 |  |  | $ | (415) |  |  | $ | 88,920 |
Investments Available-for-sale in a Continuous Unrealized Loss Position | Investments available for sale that have been in a continuous unrealized loss position for greater than one-year consist of the following:
| As of March 31, 2023
(in thousands) | Fair Market Value |  | Gross Unrealized Loss
Corporate debt securities | $ | 8,151 |  |  | $ | (58) |
Schedule of Components of Property and Equipment | Property and equipment consist of the following:
(in thousands) | As of March 31, 2023 |  | As of December 31, 2022
Furniture and office equipment | $ | 1,066 |  |  | $ | 1,066 |
Leasehold improvements | 2,560 |  |  | 2,560 |
Laboratory equipment | 1,153 |  |  | 1,056 |
| 4,779 |  |  | 4,682 |
Less—accumulated depreciation and amortization | (3,459) |  |  | (3,413) |
Property and equipment, net | $ | 1,320 |  |  | $ | 1,269 |
Schedule of Accrued Liabilities | Accrued liabilities consisted of the following:
(in thousands) | As of March 31, 2023 |  | As of December 31, 2022
Accrued compensation | $ | 983 |  |  | $ | 1,849 |
Clinical trials | 2,709 |  |  | 2,333 |
Research agreements and services | 571 |  |  | 509 |
Director fees | 125 |  |  | 125 |
Patent, license and other fees | 59 |  |  | 24 |
Other accrued liabilities | 108 |  |  | 337 |
Total accrued liabilities | $ | 4,555 |  |  | $ | 5,177 |

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