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Note 17 - Subsequent Events (Details Textual) - Subsequent Event [Member] $ in Millions | Oct. 01, 2015 USD ($)
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Mr. Sartini [Member] |
Liability Contingency, Estimated Severance Payments | $ 6.2
Stephen Arcana [Member] |
Liability Contingency, Estimated Severance Payments | 1.8
Matthew W. Flandermeyer [Member] |
Liability Contingency, Estimated Severance Payments | $ 1.6

X
- Definition Amount that the Company could be liable for estimated severance payments. + References No definition available. + Details
Name: | gden_LiabilityContingencyEstimatedSeverancePayments
Namespace Prefix: | gden_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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