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Schedule of restricted stock units and performance stock units (Details)	6 Months Ended
	Jun. 30, 2020 $ / shares shares
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, beginning | shares	1,240,000
Weighted average grant date fair value, beginning | $ / shares	$ 3.56
Number of shares, granted | shares	5,102,817
Weighted average grant date fair value, granted | $ / shares	$ 1.40
Number of shares, vested/released | shares	(301,500)
Weighted average grant date fair value, vested/released | $ / shares	$ 1.78
Number of shares, forfeited | shares	(11,360)
Weighted average grant date fair value, forfeited | $ / shares	$ 1.07
Number of shares, ending | shares	6,029,957
Weighted average grant date fair value, ending | $ / shares	$ 1.83
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, granted | shares	2,585,745
Weighted average grant date fair value, granted | $ / shares	$ 1.08
Number of shares, vested/released | shares	(151,500)
Weighted average grant date fair value, vested/released | $ / shares	$ 1.14
Number of shares, forfeited | shares	(11,360)
Weighted average grant date fair value, forfeited | $ / shares	$ 1.07
Number of shares, ending | shares	2,422,885
Weighted average grant date fair value, ending | $ / shares	$ 1.08

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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