Private Placement and JH Darbie Financing - Schedule of Fair Value Warrants Estimated Using Black Scholes Valuation Model (Details) (10-K) - Warrants [Member]	3 Months Ended	12 Months Ended
Mar. 31, 2021	Dec. 31, 2020
Expected Term	1 year 6 months	1 year 6 months
Dividend yields	0.00%	0.00%
Minimum [Member]
Expected volatility	152.30%	168.50%
Risk-free interest rates	0.09%	0.12%
Maximum [Member]
Expected volatility	164.80%	191.90%
Risk-free interest rates	0.11%	0.15%

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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