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Lease Liabilities - Schedule Right-of-use Asset (Details) (10-K) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Jan. 02, 2019
Leases [Abstract]        
Right-of-use asset $ 32,757 $ 38,506 $ 60,125 $ 68,516
Current lease liability 24,485 23,883 22,000  
Long-term lease liability $ 8,272 $ 14,624 $ 39,185