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Federal Home Loan Bank Advances and Other Borrowings (Details Textual) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Carrying Value Of Securities Pledged To Federal Home Loan Bank | 18,705,000csbq_CarryingValueOfSecuritiesPledgedToFederalHomeLoanBank | $ 20,140,000csbq_CarryingValueOfSecuritiesPledgedToFederalHomeLoanBank
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances | 49,387,988us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch |
Long Term Advance Dated February 9 2005 [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate | 3.86%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_LongtermDebtTypeAxis = csbq_LongTermAdvanceDatedFebruary92005Member |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date | 2015 |
Long Term Advance Dated August 13 2007 [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate | 4.43%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_LongtermDebtTypeAxis = csbq_LongTermAdvanceDatedAugust132007Member |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date | 2014 |
Federal Home Loan Bank Advances Put Option Exercisable Date | February 2009 |
Long Term Advance Dated January 7 2008 [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate | 3.52%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_LongtermDebtTypeAxis = csbq_LongTermAdvanceDatedJanuary72008Member |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date | 2015 |
Federal Home Loan Bank Advances Put Option Exercisable Date | January 2011 |
ShortTerm Advance Dated July 30 2014 [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate | 0.23%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_LongtermDebtTypeAxis = csbq_ShorttermAdvanceDatedJuly302014Member |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date | 2015 |
Short Term Advance Dated November 20 2014 [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate | 0.36%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_LongtermDebtTypeAxis = csbq_ShortTermAdvanceDatedNovember202014Member |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date | 2015 |
Long Term Advance Dated January 20 2006 [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate | 4.18%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_LongtermDebtTypeAxis = csbq_LongTermAdvanceDatedJanuary202006Member |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date | 2016 |
Federal Home Loan Bank Advances Put Option Exercisable Date | January 2009 |
Long Term Advance Dated January 10 2007 [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate | 4.25%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_LongtermDebtTypeAxis = csbq_LongTermAdvanceDatedJanuary102007Member |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date | 2017 |
Federal Home Loan Bank Advances Put Option Exercisable Date | January 2008 |
Financial Institution [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Other Borrowings |  | $ 1,740,000us-gaap_OtherBorrowings / us-gaap_LongtermDebtTypeAxis = csbq_FinancialInstitutionMember

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- Definition Represents carrying value of securities pledged to federal home loan bank during the reporting period. + References No definition available. + Details
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- Definition Represents federal home loan bank advances put option exercisable date during the reporting period. + References No definition available. + Details
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- Definition Amount of advances from the Federal Home Loan Bank (FHLB). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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- Definition Discloses the year of maturity, when only one maturity date applies. for the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13, 16 -Article 9 + Details
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