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Stock-Based Compensation (Schedule of Fair Value of the Stock Options Granted) (Details) - Stock Options [Member]
3 Months Ended
Mar. 31, 2021
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]  
Expected dividend yield over expected term 0.00%
Resulting weighted average grant date fair value $ 6.45
Minimum [Member]  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]  
Expected term (years) 5 years
Risk free interest rate 0.42%
Volatility 99.00%
Maximum [Member]  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]  
Expected term (years) 6 years
Risk free interest rate 0.585%
Volatility 102.00%