Share-based Compensation - Stock Options Granted to Non-employees (Details) - Employee Stock Option	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility		5600.00%
Non-employee \| Consultant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility		57.00%
Risk-free interest rate		2.10%
Risk free interest rate, minimum	0.60%
Risk-free interest rate, maximum	1.60%
Term (in years)	10 years	10 years
Dividend yield	0.00%	0.00%
Non-employee \| Minimum \| Consultant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	56.00%
Non-employee \| Maximum \| Consultant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	60.00%

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.

+ References

+ Details

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- Definition

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

+ References

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Publisher FASB
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