Intrinsic value of equity-based compensation awards not vested. Stock units.

No definition available.

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- Definition

Intrinsic value of equity-based compensation awards not vested. Stock units

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Number of common shares reserved for future issuance related to deferred compensation arrangements with individuals.

+ 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.

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No definition available.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

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

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Share-based compensation - Additional Information (Details) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Jun. 11, 2020	Jun. 07, 2018	Sep. 17, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share based compensation expense	$ 300,000	$ 600,000
Common stock reserved for issuance	3,077,400
Options granted	0	284,800	3,164,800
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 800,000		$ 700,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	100,000		$ 300,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	$ 0	$ 11,100,000
Stock option vesting period	2 years
Minimum
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Contractual term	3 years
Maximum
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Contractual term	10 years
2014 Stock Incentive Plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Common stock reserved for issuance						3,000,000
Share-based compensation arrangement by share based payment award percentage of fair market Person holding more then 10% voting stock						$ 110
2018 Stock Incentive Plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Common stock reserved for issuance					4,000,000
Share-based compensation arrangement by share based payment award percentage of fair market Person holding more then 10% voting stock					$ 110
2020 Stock Incentive Plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Common stock reserved for issuance				3,000,000
Share-based compensation arrangement by share based payment award percentage of fair market Person holding more then 10% voting stock				$ 110