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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Reconciliation of Expected Income Tax Expense (Benefit) using Federal Statutory Income Tax Rate to Effective Income Tax Rate

A reconciliation of the expected income tax expense (benefit) computed using the federal statutory income tax rate the Company’s effective income tax rate is as follows:

 

 

 

Year ended December 31,

 

 

 

 

2022

 

 

2021

 

 

Expected income tax benefit at the federal statutory rate

 

 

21.0

 

%

 

21.0

 

%

State income taxes, net of federal benefit

 

 

7.4

 

 

 

7.9

 

 

Non-deductible items

 

 

(0.9

)

 

 

0.4

 

 

Research and development credit, net

 

 

3.9

 

 

 

4.1

 

 

Other

 

 

0.1

 

 

 

0.0

 

 

Change in valuation allowance

 

 

(31.5

)

 

 

(33.4

)

 

Total

 

 

0.0

 

%

 

0.0

 

%

Schedule of Deferred Tax Assets and Liabilities

The principal components of the Company’s deferred tax assets and liabilities consist of the following:

 

 

 

As of December 31,

 

 

 

2022

 

 

2021

 

Deferred tax assets:

 

 

 

 

 

 

 

 

Federal and state net operating loss carryforwards

 

$

57,746

 

 

$

52,231

 

Research and development tax credits

 

 

12,613

 

 

 

7,726

 

R&D capitalized expenses

 

 

17,148

 

 

 

 

Accrued compensation and stock compensation

 

 

10,274

 

 

 

6,055

 

Other

 

 

142

 

 

 

20

 

Gross deferred tax assets

 

 

97,923

 

 

 

66,032

 

Less: valuation allowance

 

 

(97,923

)

 

 

(66,032

)

Net deferred tax assets

 

$

 

 

$