Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Reconciliation of Federal Statutory Income Tax Rate and Effective Income Tax Rate

The reconciliations of the U.S. statutory federal income tax rates to the Company's effective tax rates were as follows:

	Year Ended December 31,
	2022			2021
U.S. federal statutory income tax rate		21.0	%		21.0	%
Adjustments for the tax effects of:
State income taxes, net of federal tax		1.1			1.0
Other permanent differences		0.4			(0.4	)
Research and development tax credits		3.4			3.1
Research and development credit permanent adjustment		—			(0.6	)
Stock-based compensation		(2.2	)		(1.6	)
Uncertain tax positions		(0.9	)		(0.8	)
Change in valuation allowance		(22.8	)		(21.7	)
Effective income tax rate		—	%		—	%

Schedule Of Components Of Deferred Tax Assets And Liabilities

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The significant components of our deferred tax assets and liabilities are as follows (in thousands):

	As of December 31,
	2022			2021
Deferred tax assets
Net operating loss carryforwards	$	17,304		$	12,623
Capitalized research and development		11,731			—
Research and development credits		4,599			2,349
Deferred revenue		—			126
Operating lease liabilities		1,951			—
Stock-based compensation		2,203			5,192
Other		712			533
Total deferred tax assets		38,500			20,823
Deferred tax liabilities
Property and equipment		(1,135	)		—
Right-of-use assets – operating leases		(720	)		—
Other		(269	)		(280	)
Total deferred tax liabilities		(2,124	)		(280	)
Less: valuation allowance		(36,376	)		(20,543	)
Net deferred tax assets	$	—		$	—

Summary of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits for uncertain tax positions were as follows (in thousands):

	Year Ended December 31,
	2022		2021
Unrecognized tax benefits, beginning of year	$	758	$	263
Additions based on tax positions relating to current year		775		495
Additions based on tax positions relating to prior year		14		—
Unrecognized tax benefits, end of year	$	1,547	$	758

The Company does not believe it is reasonably possible that its unrecognized tax benefits will change materially in the next twelve months.