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SHORT-TERM BORROWINGS (Details) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Outstanding $ 8,648,446us-gaap_AssetsSoldUnderAgreementsToRepurchaseCarryingAmounts $ 8,428,046us-gaap_AssetsSoldUnderAgreementsToRepurchaseCarryingAmounts
Average interest rate at period end 0.54%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate 0.56%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate
Average balance during period 8,492,565cshb_AverageBalanceDuringPeriod 9,706,847cshb_AverageBalanceDuringPeriod
Average interest rate during period 0.55%cshb_AverageInterestRateDuringPeriod 0.58%cshb_AverageInterestRateDuringPeriod
Maximum month end balance during period $ 8,933,506cshb_MaximumMonthEndBalanceDuringPeriod $ 10,878,256cshb_MaximumMonthEndBalanceDuringPeriod