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Note 17 - Subsequent Events (Details Textual) - Subsequent Event [Member] $ in Millions	Oct. 01, 2015 USD ($)
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: