Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Statutory U.S. Federal Rate (Details)

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Income Taxes - Reconciliation of Statutory U.S. Federal Rate (Details)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Percentage of pre-tax income:    
Statutory federal income tax rate 21.00% 21.00%
State taxes, net of federal tax benefit 4.00% 6.00%
Credits 3.00% 1.00%
Change in state tax rate (4.00%) 1.00%
Provision to return   (1.00%)
Other (3.00%) (3.00%)
Change in valuation allowance (21.00%) (25.00%)
Income taxes provision (benefit) 0.00% 0.00%