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Stock-based Compensation Expense (Tables)
9 Months Ended
Sep. 30, 2023
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Schedule of Weighted Average Assumptions of Stock Options
The following weighted-average assumptions were used to estimate the fair value of stock options granted during nine months ended September 30, 2023:

Risk-free interest rate3.80 %
Expected volatility97.96 %
Expected dividends— %
Expected life of options5 years