Lessee Leasing Arrangements, Operating Leases, Landlord Improvement Allowance

No definition available.

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Data Type:	xbrli:monetaryItemType
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- Definition

Lessee Leasing Arrangements, Operating Leases, Number of Renewal Options

+ References

No definition available.

+ Details

Name:	elgx_LesseeLeasingArrangementsOperatingLeasesNumberofRenewalOptions
Namespace Prefix:	elgx_
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Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Number of Letters of Credit

+ References

No definition available.

+ Details

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Namespace Prefix:	elgx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Operating Leases, Facility, Area

+ References

No definition available.

+ Details

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Namespace Prefix:	elgx_
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Balance Type:	na
Period Type:	instant

- Details

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- Definition

Operating Leases, Future Minimum Payments Due, Base Rent Increase, Year Five

+ References

No definition available.

+ Details

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- Definition

Operating Leases, Future Minimum Payments Due, Base Rent Increase, Year Four

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Operating Leases, Future Minimum Payments Due, Base Rent Increase, Year Seven and Thereafter

+ References

No definition available.

+ Details

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- Definition

Operating Leases, Future Minimum Payments Due, Base Rent Increase, Year Six

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Operating Leases, Future Minimum Payments Due, Base Rent Increase, Year Three

+ References

No definition available.

+ Details

Name:	elgx_OperatingLeasesFutureMinimumPaymentsDueBaseRentIncreaseYearThree
Namespace Prefix:	elgx_
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Balance Type:	na
Period Type:	instant

- Definition

Operating Leases, Future Minimum Payments Due, Base Rent Increase, Year Two

+ References

No definition available.

+ Details

Name:	elgx_OperatingLeasesFutureMinimumPaymentsDueBaseRentIncreaseYearTwo
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Balance Type:	na
Period Type:	instant

- Definition

Operating Leases, Future Minimum Payments, Due in Six Years

+ References

No definition available.

+ Details

Name:	elgx_OperatingLeasesFutureMinimumPaymentsDueinSixYears
Namespace Prefix:	elgx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Operating Leases, Number of Facilities

+ References

No definition available.

+ Details

Name:	elgx_OperatingLeasesNumberofFacilities
Namespace Prefix:	elgx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Operating Leases, Number of Lease Exited

+ References

No definition available.

+ Details

Name:	elgx_OperatingLeasesNumberofLeaseExited
Namespace Prefix:	elgx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Term of the lessee's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LesseeLeasingArrangementsOperatingLeasesRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 3)

-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

+ Details

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

- Details

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- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

+ Details

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

- Definition

This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 3)

-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 25

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=7661868&loc=d3e34039-112682

+ Details

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Balance Type:	debit
Period Type:	duration

- Details

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- Details

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Commitments and Contingencies (Details) (USD $)	0 Months Ended	1 Months Ended		3 Months Ended
Commitments and Contingencies (Details) (USD $)	Jun. 12, 2013 option sqft facility	Dec. 31, 2014 lease	Jun. 30, 2013 letters_of_credit	Mar. 31, 2015	Mar. 31, 2014
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Remainder of 2015				$ 1,909,000
2016				2,363,000
2017				2,331,000
2018				2,258,000
2019				2,296,000
2020				2,388,000
2021 and thereafter				22,884,000
Total				36,429,000
Rent expense				600,000us-gaap_LeaseAndRentalExpense	700,000us-gaap_LeaseAndRentalExpense
Number of facilities	2elgx_OperatingLeasesNumberofFacilities
Aggregate square feet	129,000elgx_OperatingLeasesFacilityArea
Term of contract	15 years
Number of renewal options	1
Renewal term	5 years
Initial base rent	1,900,000
LandLord-funded improvements	$ 6,800,000
Number of letters of credit			2
Number of leases exited		1elgx_OperatingLeasesNumberofLeaseExited
Operating Leases, Future Minimum Payments Due, Base Rent Increases [Abstract]
2015	3.00%
2016	3.00%
2017	3.00%
2018	3.00%
2019	3.00%
2020 and beyond	4.00%
Manufacturing Facility
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Aggregate square feet	57,000
Building
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Aggregate square feet	2,900