XML 44 R32.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Intangible Assets - Summary and Other (Details) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 18 Months Ended
--- | --- | --- | --- | --- | ---
Nov. 30, 2013 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 item | Jun. 30, 2017 USD ($) item
Composition of intangible assets |  |  |  |  |  |  |  |
Total gross amount |  | $ 18,024,000 |  | $ 18,024,000 |  | $ 17,743,000 |  | $ 18,024,000
Accumulated amortization |  | (12,995,000) |  | (12,995,000) |  | (11,176,000) |  | (12,995,000)
Total |  | 5,029,000 |  | $ 5,029,000 |  | $ 6,567,000 |  | $ 5,029,000
Useful life/amortization period |  |  |  | 60 months |  | 60 months |  |
Amortization expense |  | 900,000 | $ 900,000 | $ 1,800,000 | $ 1,800,000 |  |  |
Number of international distributors | item |  |  |  |  |  |  |  | 2
Estimated amortization expense |  |  |  |  |  |  |  |
2017 |  | 3,800,000 |  | 3,800,000 |  |  |  | $ 3,800,000
2018 |  | 3,100,000 |  | 3,100,000 |  |  |  | 3,100,000
GMP royalty buyout |  |  |  |  |  |  |  |
Composition of intangible assets |  |  |  |  |  |  |  |
Total gross amount |  | 17,500,000 |  | 17,500,000 |  | $ 17,500,000 |  | 17,500,000
Non-compete agreements |  |  |  |  |  |  |  |
Composition of intangible assets |  |  |  |  |  |  |  |
Total gross amount |  | 524,000 |  | 524,000 |  | $ 243,000 |  | $ 524,000
Amortization expense |  | $ 66,000 | $ 23,000 | 129,000 | $ 46,000 |  |  |
Number of international distributors | item |  |  |  |  |  |  | 2 |
The amount of fair value of the non-compete provisions recorded as intangible asset |  |  |  | $ 500,000 |  |  |  |
Non-compete agreements | Minimum |  |  |  |  |  |  |  |
Composition of intangible assets |  |  |  |  |  |  |  |
Useful life/amortization period |  |  |  | 1 year |  |  |  |
Non-compete agreements | Maximum |  |  |  |  |  |  |  |
Composition of intangible assets |  |  |  |  |  |  |  |
Useful life/amortization period |  |  |  | 2 years |  |  |  |
Buy-out Agreement with GMP | GMP royalty buyout |  |  |  |  |  |  |  |
Composition of intangible assets |  |  |  |  |  |  |  |
Intangible asset purchase amount | $ 17,500,000 |  |  |  |  |  |  |
Useful life/amortization period | 5 years |  |  |  |  |  |  |
Buy-out Agreement with GMP | GMP Note Parties |  |  |  |  |  |  |  |
Composition of intangible assets |  |  |  |  |  |  |  |
Face amount at time of issuance | $ 17,500,000 |  |  |  |  |  |  |

X
- Definition The amount of fair value of the non-compete provisions recorded as an intangible asset. + References No definition available. + Details
Name: | gkos_FairValueOfNonCompeteProvisionsRecordedAsIntangibleAsset
Namespace Prefix: | gkos_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the current fiscal year. + References No definition available. + Details
Name: | gkos_FiniteLivedIntangibleAssetsAmortizationExpenseCurrentFiscalYear
Namespace Prefix: | gkos_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of international distributors which the company entered into agreements with. + References No definition available. + Details
Name: | gkos_NumberOfInternationalDistributorsWithAgreements
Namespace Prefix: | gkos_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Useful life of finite-lived intangible assets, 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_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References No definition available. + Details
Name: | us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_RoyaltyAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_NoncompeteAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=gkos_BuyOutAgreementWithGmpSolutionsInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CounterpartyNameAxis=gkos_GMPVisionSolutionsAndRelatedPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |