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Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
OPERATING EXPENSES:    
Research and development $ 4,591 $ 1,942
General and administrative 2,347 1,324
Total operating expenses 6,938 3,266
Loss from operations (6,938) (3,266)
Other income (expense), net:    
Interest expense (883)
Change in fair value of warrant liability (1,581)
Change in fair value of derivative liability 121
Interest and other income, net 6 1
Other income (expense), net 6 (2,342)
Net loss (6,932) (5,608)
Accretion and dividends on redeemable convertible preferred stock (2,489)
Net loss attributable to common stockholders (6,932) (8,097)
Net loss (6,932) (5,608)
Other comprehensive loss:    
Change in unrealized loss on available-for-sale securities (19)
Total comprehensive loss $ (6,951) $ (5,608)
Net loss per share attributable to common stockholders, basic and diluted (in Dollars per share) $ (0.21) $ (1.01)
Weighted average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in Shares) 32,744,004 8,049,048