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Note 5 - Benefit Plans (Details) (USD $)
3 Months Ended 1 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Feb. 28, 2015
Note 5 - Benefit Plans (Details) [Line Items]      
Allocated Share-based Compensation Expense $ 42,599us-gaap_AllocatedShareBasedCompensationExpense $ 28,787us-gaap_AllocatedShareBasedCompensationExpense  
Restricted Stock or Unit Expense 19,013us-gaap_RestrictedStockExpense    
Employee Stock Option [Member]      
Note 5 - Benefit Plans (Details) [Line Items]      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized 410,261us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
   
Restricted Stock [Member] | Director [Member] | 2010 Equity Plan [Member]      
Note 5 - Benefit Plans (Details) [Line Items]      
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in Shares) 8,281us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= gfed_EquityPlan2010Member
/ us-gaap_TitleOfIndividualAxis
= us-gaap_DirectorMember
   
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) $ 14.79us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= gfed_EquityPlan2010Member
/ us-gaap_TitleOfIndividualAxis
= us-gaap_DirectorMember
   
Restricted Stock [Member] | Officer [Member]      
Note 5 - Benefit Plans (Details) [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)     17,704us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_OfficerMember
Restricted Stock [Member] | Chief Executive Officer [Member]      
Note 5 - Benefit Plans (Details) [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Cliff Vesting Period     3 years
Director [Member]      
Note 5 - Benefit Plans (Details) [Line Items]      
Restricted Stock or Unit Expense $ 122,476us-gaap_RestrictedStockExpense
/ us-gaap_TitleOfIndividualAxis
= us-gaap_DirectorMember