Quarterly report pursuant to Section 13 or 15(d)

Schedule of Stock-based Compensation (Details)

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Schedule of Stock-based Compensation (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total $ 71 $ 222
Research and Development Expense [Member]    
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total 23 59
Selling, General and Administrative Expenses [Member]    
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total 6 1
General and Administrative Expense [Member]    
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total $ 42 $ 162