Share-based Compensation - Options Valuation (Details) - Stock options - $ / shares	3 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Assumptions used to estimate fair values
Risk-free interest rate (as a percent)		0.20%
Expected volatility (as a percent)		82.50%
Expected dividend yield (as a percent)	0.00%	0.00%
Expected term (in years)		5 years
Weighted average fair value (in dollars per share)		$ 3.86
Granted (in shares)	0

No definition available.

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- Definition

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

Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

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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- 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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