Income Taxes (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of Reconciliation Between U.S. Statutory Income Tax Rate and Company's Effective Rate

	Year Ended December 31,
	2023			2022			2021
U.S. federal income tax statutory rate		21	%		21	%		21	%
Permanent differences		—			1	%		10	%
State tax, net of federal benefit		7	%		5	%		5	%
Changes in valuation allowance for deferred tax assets		(17	)%		(27	)%		(35	)%
Stock-based compensation		(7	)%		—	%		—	%
Expiring net operating losses		—	%		—	%		(1	)%
Other		2	%		—	%		—	%
State rate change		(6	)%		—	%		—	%
Effective tax rate		—			—			—

The tax effects of temporary differences between financial statement and tax accounting that gave rise to significant portions of the Company’s deferred tax assets and deferred tax liabilities at

Schedule of Deferred Tax Assets and Deferred Tax Liabilities

December 31, 2023 and 2022 are presented below:

	December 31,
	2023			2022
	(In thousands)
Deferred tax assets:
Net operating loss carryforwards	$	82,563		$	81,943
Stock-based compensation		3,076			6,677
Operating lease liabilities		5,997			4,065
Capitalized research and development		6,320			3,916
Tax credit carryforwards		4,261			448
Reserves and accruals		6,180			3,160
Interest expense limitation		929			1,257
Total gross deferred tax assets		109,326			101,466
Deferred tax liabilities:
Depreciation		(1,125	)		(1,879	)
Operating lease right-of-use assets		(4,340	)		(3,081	)
Total deferred tax liabilities		(5,465	)		(4,960	)
Total deferred tax assets and liabilities		103,861			96,506
Valuation allowance		(103,861	)		(96,506	)
Net deferred tax asset	$	—		$	—