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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2024
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation
A reconciliation of income tax benefit at the statutory federal income tax rate and income taxes as reflected in the consolidated financial statements is as follows:
Years Ended December 31,
20242023
Federal tax benefit at statutory rate(21.0)%(21.0)%
State and local tax, net of federal benefit(8.0)(8.5)
State and local tax rate change3.1 1.6 
Permanent differences0.1 0.4 
Research and development(5.8)(0.9)
Change in valuation allowance33.0 28.4 
Other
(1.4)— 
Total provision— %— %
Schedule of Deferred Tax Assets for Federal Income Taxes
Significant components of the Company's deferred tax assets for federal income taxes consisted of the following (in thousands):
December 31,
20242023
Deferred tax assets
Net operating losses$87,742 $72,689 
Capitalized research and development costs, net of amortization35,608 33,778 
Research and development credits13,269 9,746 
Start-up costs4,051 4,407 
Deferred revenue12,182 13,353 
Lease liability733 668 
Accrued compensation405 — 
Amortizable assets and other27 21 
Equity compensation1,115 87 
Gross deferred tax assets155,132 134,749 
Valuation allowance(153,855)(133,580)
Deferred tax assets, net of valuation allowance1,277 1,169 
Deferred tax liabilities
Right of use asset(848)(645)
Depreciation(429)(524)
Deferred tax liabilities(1,277)(1,169)
Net deferred tax assets and liabilities$— $—