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Summary of Significant Accounting Policies Schedule of Future Amortization of Intangible Assets (Details) (Treehouse Brand Stores, LLC, USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Treehouse Brand Stores, LLC
 
Business Acquisition [Line Items]  
2015 $ 277us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
/ us-gaap_BusinessAcquisitionAxis
= gknt_TreehouseBrandStoresLLCMember
2016 277us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
/ us-gaap_BusinessAcquisitionAxis
= gknt_TreehouseBrandStoresLLCMember
2017 260us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
/ us-gaap_BusinessAcquisitionAxis
= gknt_TreehouseBrandStoresLLCMember
2018 236us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
/ us-gaap_BusinessAcquisitionAxis
= gknt_TreehouseBrandStoresLLCMember
2019 138us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
/ us-gaap_BusinessAcquisitionAxis
= gknt_TreehouseBrandStoresLLCMember
Net Asset $ 1,188us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_BusinessAcquisitionAxis
= gknt_TreehouseBrandStoresLLCMember