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Consolidated Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Income Statement [Abstract]    
Total revenue [1] $ 358 $ 136
Cost of revenue [1] 196 61
Gross profit [1] 162 75
Research and development [1] 8,891 5,216
Sales and marketing [1] 1,806 2,092
General and administrative [1] 15,708 21,412
Operating expenses [1] 26,405 28,720
Loss from operations [1] (26,243) (28,645)
Non-operating income (expense)    
Interest and other income [1] 295 47
Interest expense, net [1] (1,602) (772)
Change in value of warrant liability [1] 528 3,392
Loss before income tax provision [1] (27,022) (25,978)
Income tax provision [1]
Net loss [1] (27,022) (25,978)
Less: Series A convertible preferred stock dividends [1] 861 889
Net loss available to common stockholders [1] $ (27,883) $ (26,867)
Loss per share – basic (in Dollars per share) [1] $ (0.42) $ (0.73)
Weighted average shares used in computing net loss per common share – basic (in Shares) [1] 66,611 36,680
[1] As described in Note 3 to the Consolidated Financial Statements appearing elsewhere in this Amendment, we have restated the Consolidated Financial Statements.