Exercise price per share or per unit of warrants or rights outstanding.

No definition available.

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Namespace Prefix:	end_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Class Of Warrant Or Right, Expiration Date

+ References

No definition available.

+ Details

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Namespace Prefix:	end_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:	end_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility, Annual Fee Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	end_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility, Initial Fee Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	end_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility, Outstanding And Accrued Fees

+ References

No definition available.

+ Details

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Namespace Prefix:	end_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line Of Credit Facility, Quarterly Fee Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	end_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility, Termination Fee Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	end_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 2

-Article 4

+ Details

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=end_WarrantsExpiringOnJanuary92018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=end_ProcurementAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments And Contingencies (LOC Procurement Agreement) (Details) (USD $)	1 Months Ended	12 Months Ended	0 Months Ended
	Jan. 31, 2013	Dec. 31, 2014	Jan. 09, 2013	Jan. 24, 2014	Sep. 30, 2012
Commitments And Contingencies [Line Items]
Maximum credit amount				$ 255,000,000	$ 125,000,000
Warrants Expiring On January 9, 2018 [Member]
Commitments And Contingencies [Line Items]
Number of common stock shares warrants can be converted into	1,000,000
Warrants exercise price	$ 7.31
Warrants expiration date	Jan. 09, 2018	Jan. 09, 2018
Procurement Agreement [Member]
Commitments And Contingencies [Line Items]
Maximum credit amount			33,000,000
Quarterly fee percentage			9.00%
Initial fee percentage			1.00%
Termination fee percentage			2.00%
Annual fee percentage			0.65%
LOC Procurement Agreement, outstanding and accrued fees				$ 200,000