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Schedule of Stock-Based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-Based Payment Arrangement, Noncash Expense $ 973 $ 857 $ 4,166 $ 2,599
Research and Development Expense [Member]        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-Based Payment Arrangement, Noncash Expense 261 193 721 551
General and Administrative Expense [Member]        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-Based Payment Arrangement, Noncash Expense $ 712 $ 664 $ 3,445 $ 2,048