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Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2023
Income Tax Disclosure [Abstract]  
Schedule of income tax reconciliation A reconciliation of the expected income tax expense (benefit) computed using the federal statutory income tax rate to the Company’s effective income tax rate is as follows for the years ended December 31, 2023 and 2022 (amounts in thousands):
Year Ended December 31,
20232022
Income tax benefit computed at federal statutory tax rate$(18,332)$(21,409)
Change in valuation allowance21,347 24,713 
General business credits(4,392)(4,883)
Stock compensation486 602 
Change in uncertain tax position878 977 
Other13 — 
Income tax benefit$— $— 
Schedule of deferred tax assets and liabilities
Significant components of the Company’s deferred tax assets and liabilities are as follows (amounts in thousands):
December 31,
20232022
Deferred tax asset:
Net operating loss carryforwards$31,393 $24,867 
Accrued expenses and other1,827 3,578 
Stock compensation2,431 1,533 
Credit carryforwards13,614 10,101 
Capital loss carryforwards583 583 
Capitalized R&D expense27,210 15,017 
Lease liabilities882 1,030 
Gross deferred tax asset77,940 56,709 
Less valuation allowance(76,386)(55,044)
Net deferred tax asset1,554 1,665 
Deferred tax liability:
Depreciation and amortization(744)(676)
Prepaid expenses(334)(436)
Lease assets(476)(553)
Total deferred tax liability(1,554)(1,665)
Total net deferred tax asset$— $— 
Schedule of unrecognized tax benefits
A reconciliation of the Company’s liability for unrecognized tax benefits is as follows (amounts in thousands):
Year Ended December 31,
2023
2022
Balance, beginning of the year$2,380 $1,404 
Increase for tax positions related to the current year642 733 
Increase for tax positions related to prior years236 243 
Balance, end of year$3,258 $2,380