| 2023 | ||||
| Audit Fees(1) | $ | 2,338,347 | ||
| Audit-Related Fees | — | |||
| Tax Fees | — | |||
| All Other Fees | — | |||
| Total Fees | $ | 2,338,347 | ||
| December 31, | ||||||||
| 2023 | 2022 | |||||||
| (in thousands) | ||||||||
| Deferred tax assets: | ||||||||
| Depreciation and amortization | $ | — | $ | 1,220 | ||||
| Capitalized research and development costs | 17,935 | 6,009 | ||||||
| Net operating loss carryforwards | 2,277 | 1,244 | ||||||
| Accrued expenses and other current liabilities | 48 | 97 | ||||||
| Operating lease liabilities | 6,133 | 441 | ||||||
| Tax credit carryforwards | 2,658 | 2,350 | ||||||
| Capitalized startup costs | 7,670 | — | ||||||
| Stock-based compensation | 301 | 3 | ||||||
| Total deferred tax assets | 37,022 | 11,364 | ||||||
| Deferred tax liabilities | ||||||||
| Right of use assets | (6,064) | (465) | ||||||
| Fixed assets | (601) | — | ||||||
| Total deferred tax liabilities | (6,665) | (465) | ||||||
| Total net deferred tax assets | 30,357 | 10,899 | ||||||
| Less: valuation allowance | (30,357) | (10,899) | ||||||
| Net deferred tax assets | $ | — | $ | — | ||||
| Year ended December 31, | ||||||||
| 2023 | 2022 | |||||||
| U.S. federal taxes at statutory rate | 21.0 | % | 21.0 | % | ||||
| State tax – net of federal | 0.3 | (1.8) | ||||||
| Federal tax credits | 0.2 | 7.8 | ||||||
| Change in valuation allowance | (19.8) | (23.4) | ||||||
| Stock-based compensation | (0.4) | (0.1) | ||||||
| Non-deductible expenses | (1.3) | (3.2) | ||||||
| Other | - | (0.3) | ||||||
| Total | — | % | — | % | ||||
| December 31, | ||||||||
| 2023 | 2022 | |||||||
| (in thousands) | ||||||||
| Balance at the beginning of the year | $ | 872 | $ | 35 | ||||
| Increases based on tax positions related to current year | 717 | 837 | ||||||
| Increases based on tax positions related to prior years | 62 | - | ||||||
| Reductions based on tax positions related to prior years | (417) | - | ||||||
| Balance at end of year | $ | 1,234 | $ | 872 | ||||
