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Stock-Based Compensation (Details Narrative) (10-K) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 29, 2020
Apr. 30, 2019
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Options exercisable term     10 years     10 years  
Options vesting period     3 years     3 years  
Aggregate intrinsic value of options     $ 0   $ 0 $ 0 $ 0
Weighted average fair value     $ 0.36     $ 0.22 $ 0.19
Compensation cost $ 2,100,000 $ 341,000 $ 2,100,000   $ 2,100,000  
Number of share-based payment award, accelerated vesting   328,000 0        
Reissuance of warrants 13,750,000            
Warrants issued     2,035,000 13,750,000 13,750,000 13,750,000
Warrants excersiable term     1 year 18 days   2 years 6 months 2 years 6 months  
Initial debt discount     $ 120,000   $ 200,000 $ 200,000  
Amortization of debt discount and debt issuance costs     54,572 $ 359,971   732,767 $ 155,644
Interest Expense [Member]              
Amortization of debt discount and debt issuance costs     373,949 $ 0   412,318 $ 0
Convertible Debt Instrument [Member]              
Initial debt discount     $ 700,000   $ 700,000 $ 700,000  
Private Placement [Member]              
Weighted average fair value         $ 0.20    
Warrant exercise price per share         0.20 $ 0.20  
Private Placement [Member] | Edgepoint Common Stock [Member]              
Warrant exercise price per share         $ 1.00 $ 1.00  
Accredited Investors [Member]              
Warrants issued 3,465,000            
Maximum [Member]              
Warrants excersiable term         5 years 5 years  
Maximum [Member] | Private Placement [Member]              
Warrants issued         3,465,000 3,465,000  
Additional paid-in capital on a relative fair value basis         $ 400,000 $ 400,000  
Minimum [Member]              
Warrants excersiable term         3 years 3 years  
2017 Equity Incentive Plan [Member] | Maximum [Member]              
Number of common stock issued to awards     2,000,000     2,000,000  
2015 and 2005 Equity Incentive Plan [Member] | Maximum [Member]              
Number of common stock issued to awards     7,250,000     7,250,000  
2015 Equity Incentive Plan [Member]              
Number of common stock issued to awards     20,000,000        
2015 Equity Incentive Plan [Member] | Maximum [Member]              
Number of common stock issued to awards           20,000,000