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Schedule of Stock Based Compensation Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense $ 648 $ 760
Research and Development Expense [Member]    
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense 9 32
General and Administrative Expense [Member]    
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation expense $ 639 $ 728