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ALLOWANCE FOR LOAN LOSSES AND IMPAIRED LOANS (Details Textual) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2012
Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]      
Allowance for Credit Losses, Change in Method of Calculating Impairment $ 1,698,919us-gaap_AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment $ 1,698,919us-gaap_AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment $ 1,499,705us-gaap_AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment
Receivables, Change in Method of Calculating Impairment, Recorded Investment 10,788,238us-gaap_ReceivablesChangeInMethodOfCalculatingImpairmentRecordedInvestment 10,788,238us-gaap_ReceivablesChangeInMethodOfCalculatingImpairmentRecordedInvestment 9,036,794us-gaap_ReceivablesChangeInMethodOfCalculatingImpairmentRecordedInvestment
Additional Allowance for Credit Losses Change in Method of Calculating Impairment 50,000cshb_AdditionalAllowanceForCreditLossesChangeInMethodOfCalculatingImpairment 50,000cshb_AdditionalAllowanceForCreditLossesChangeInMethodOfCalculatingImpairment  
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down 22,000us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown 638,000us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown  
Financing Receivable, Credit Quality, Additional Information   All commercial and commercial real estate loans exceeding $500,000 are formally reviewed at least annually. Once a loan is graded a 5M or greater number, and is over $100,000, the loan grade will be reanalyzed once per quarter to assess the borrowers compliance with the Banks documented action plan. In addition to these methods for assigning loan grades, changes may occur through the external loan review or regulatory exam process. The loan grades are as follows:  
Performing Financing Receivable [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Allowance for Credit Losses, Change in Method of Calculating Impairment     $ 222,700us-gaap_AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PerformingFinancingReceivableMember