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Schedule of assumptions used to calculate Black-Scholes option pricing model for options granted (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Weighted-average risk-free interest rates	1.40%	0.50%
Dividend yield	0.00%	0.00%
Weighted-average expected life (years) of the option	5 years	5 years
Weighted-average expected stock price volatility	115.00%	95.00%
Weighted-average fair value of the options granted	$ 2.59	$ 0.28

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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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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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Rate of weighted-average expected volatility for award under share-based payment arrangement.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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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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