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Securities (Details 1) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]    
Securities Available for Sale, Due in one year or less, Amortized Cost $ 0us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost  
Securities Available for Sale, Due from one year to five years, Amortized Cost 898,308us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost  
Securities Available for Sale, Due from five years to ten years, Amortized Cost 3,116,718us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost  
Securities Available for Sale, Due after ten years, Amortized Cost 3,551,514us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost  
Securities Available for Sale, Debt securities, Amortized Cost 7,566,540csbq_AvailableForSaleSecuritiesDebtMaturitiesBeforeWithoutSingleMaturityDateAmortizedCost  
Securities Available for Sale, Mortgage-backed securities, Amortized Cost 76,945,227us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost  
Securities Available for Sale, Amortized Cost 84,511,767us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis 86,720,015us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Securities Available for Sale, Due in one year or less, Fair Value 0us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue  
Securities Available for Sale, Due from one year to five years, Fair Value 931,639us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue  
Securities Available for Sale, Due from five years to ten years, Fair Value 3,240,244us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue  
Securities Available for Sale, Due after ten years, Fair Value 3,719,935us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue  
Securities Available for Sale, Debt securities, Fair Value 7,891,818csbq_AvailableForSaleSecuritiesDebtMaturitiesBeforeWithoutSingleMaturityDateFairValue  
Securities Available for Sale, Mortgage-backed securities, Fair Value 77,201,539us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue  
Securities Available for Sale, Fair Value 85,093,357us-gaap_AvailableForSaleSecuritiesDebtSecurities 87,192,909us-gaap_AvailableForSaleSecuritiesDebtSecurities
Securities Held to Maturity, Due in one year or less, Amortized Cost 0us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount  
Securities Held to Maturity, Due from one year to five years, Amortized Cost 0us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount  
Securities Held to Maturity, Due from five years to ten years, Amortized Cost 0us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount  
Securities Held to Maturity, Due after ten years, Amortized Cost 0us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount  
Securities Held to Maturity, Debt securities, Amortized Cost 0csbq_HeldToMaturitySecuritiesDebtMaturitiesBeforeWithoutSingleMaturityDateNetCarryingAmount  
Securities Held to Maturity, Mortgage-backed securities, Amortized Cost 23,636us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount  
Securities Held to Maturity, Amortized Cost 23,636us-gaap_HeldToMaturitySecurities 25,428us-gaap_HeldToMaturitySecurities
Securities Held to Maturity, Due in one year or less, Fair Value 0us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue  
Securities Held to Maturity, Due from one year to five years, Fair Value 0us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue  
Securities Held to Maturity, Due from five years to ten years, Fair Value 0us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue  
Securities Held to Maturity, Due after ten years, Fair Value 0us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue  
Securities Held to Maturity, Debt securities, Fair Value 0csbq_HeldToMaturitySecuritiesDebtMaturitiesBeforeWithoutSingleMaturityDateFairValue  
Securities Held to Maturity, Mortgage-backed securities, Fair Value 23,907us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue  
Securities Held to Maturity, Fair Value $ 23,907us-gaap_HeldToMaturitySecuritiesFairValue $ 25,702us-gaap_HeldToMaturitySecuritiesFairValue