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Goodwill and Intangible Assets - Schedule of Amortization of Expense for Intangible Assets (Details) (10-K) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
2021 $ 51,365 $ 51,365  
2022 51,365 51,365  
2023 51,365 51,365  
2024 51,365 51,365  
2025   51,365  
Thereafter   616,381  
Intangible asset, net $ 860,365 873,206 $ 924,572
In Process Research and Development [Member]      
2021   275,440  
2022   275,440  
2023   275,440  
2024   275,440  
Intangible asset, net   $ 1,101,760 $ 1,377,200