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Note 2 - Investment Securities (Details) (USD $)
1 Months Ended 3 Months Ended 12 Months Ended
Jun. 30, 2014
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2013
Disclosure Text Block Supplement [Abstract]        
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions   31us-gaap_AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1    
Available-for-sale, Securities in Unrealized Loss Positions, Depreciation from Amortized Cost, Percentage   0.70%fcap_AvailableForSaleSecuritiesInUnrealizedLossPositionsDepreciationFromAmortizedCostPercentage    
Proceeds from Sale and Maturity of Marketable Securities   $ 0us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities $ 0us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities  
Equity Method Investment Number Of Common Shares Acquired 31,750fcap_EquityMethodInvestmentNumberOfCommonSharesAcquired     100,000fcap_EquityMethodInvestmentNumberOfCommonSharesAcquired
Percentage Of Outstanding Shares Of Voting Common Stock 9.00%fcap_PercentageOfOutstandingSharesOfVotingCommonStock      
Cost Method Investments $ 711,000us-gaap_CostMethodInvestments