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Commitments and Contingencies (Details)		1 Months Ended
	Mar. 24, 2017 officer	Jul. 31, 2017 officer suit
David Buehring Case
Loss Contingencies [Line Items]
Number of defendants	2
Gardner Case
Loss Contingencies [Line Items]
Number of defendants		2
New claims filed | suit		3

X

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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=82911808&loc=d3e14435-108349

+ Details

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X

- Definition

Number of defendants named in a legal action.

+ References

No definition available.

+ Details

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- Details

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Namespace Prefix:
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X

- Details

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