The number of claims remaining after consolidation of claims.

No definition available.

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- Definition

The number of former officers named in the litigation.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

The number of investors appointed to serve, as a group, as plaintiff.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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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.

+ Details

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Data Type:	xbrli:stringItemType
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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349

+ Details

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- Details

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Namespace Prefix:
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- Details

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Commitments and Contingencies - Legal Proceedings (Details) - item			1 Months Ended		2 Months Ended
	Aug. 02, 2019	May 29, 2019	Feb. 28, 2019	Jan. 31, 2019	Nov. 30, 2018
Class Actions In Eastern District Of Pennsylvania [Member]
Loss Contingencies [Line Items]
Number of claims				3	3
Number of claims after consolidation				1
Number of investors appointed		5
Number of former officers	2
Shareholder Derivative Actions [Member]
Loss Contingencies [Line Items]
Number of claims			2