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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Income Taxes  
Schedule of reconciliation of U.S. statutory income tax rate to effective tax rate

Year Ended December 31, 

    

2022

    

2021

    

Federal income tax (benefit) at statutory rate

21.00

%  

21.00

%

Permanent differences

 

(0.66)

Federal research and development credits and adjustments

 

3.88

0.44

Nondeductible research costs

(17.75)

State income tax, net of federal benefit

 

5.67

0.82

Stock compensation

(1.20)

(0.25)

Other

 

(0.58)

0.01

Change in valuation allowance

(28.11)

(4.27)

Effective income tax rate

%  

%

Schedule of components of deferred tax assets

The Company’s deferred tax assets consisted of the following (in thousands):

Year Ended December 31,

    

2022

    

2021

Deferred tax assets

Net operating loss carryforwards

$

80,136

$

75,849

Tax credit carryforwards

12,073

10,063

Capitalized research and development

8,094

139

Capitalized legal expenses

964

1,048

Lease liability

257

99

Other differences

2,365

1,977

Total gross deferred tax assets

103,889

89,175

Less valuation allowance

(103,630)

(89,068)

Net deferred tax assets

259

107

Deferred tax liabilities

ROU asset

(259)

(107)

Net deferred taxes

$

$