XML 45 R62.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Loans and Allowance for Loan Losses (Details Textual) (USD $) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Financing Receivable, Modifications [Line Items] |  |  |
Description Of Bank's Loan Grading Process | The Banks loan grading process is as follows: All loans are assigned a loan grade at the time of origination by the relationship manager. Typically, a loan is assigned a loan grade of pass at origination. Loans relationships greater than or equal to $500 thousand are reviewed by the Banks external loan review provider on an annual basis. Additionally, the Bank's external loan review provider samples other loan relationships between $100 thousand and $500 thousand with an emphasis on commercial and commercial real estate loans and insider loans. The Banks internal loan review department samples approximately 33percent of all loan relationships less than $500 thousand on an annual basis for review. If a loan is delinquent 60 days or more or a pattern of delinquency exists, the loan will be selected for review. Generally, all loans on the Banks internal watchlist are reviewed annually by internal loan review or external loan review providers. |  |
Financing Receivable, Modifications, Recorded Investment | $ 4,956,000us-gaap_FinancingReceivableModificationsRecordedInvestment | $ 5,753,000us-gaap_FinancingReceivableModificationsRecordedInvestment |
Commercial Real Estate Mortgage [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Financing Receivable, Modifications, Recorded Investment | $ 902,000us-gaap_FinancingReceivableModificationsRecordedInvestment / us-gaap_FinancialInstrumentAxis = csbq_CommercialRealEstateMortgageMember | $ 2,073,000us-gaap_FinancingReceivableModificationsRecordedInvestment / us-gaap_FinancialInstrumentAxis = csbq_CommercialRealEstateMortgageMember | $ 5,971,000us-gaap_FinancingReceivableModificationsRecordedInvestment / us-gaap_FinancialInstrumentAxis = csbq_CommercialRealEstateMortgageMember

X
- Definition Description of Bank's loan grading process. + References No definition available. + Details
Name: | csbq_DescriptionOfBanksLoanGradingProcess
Namespace Prefix: | csbq_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=csbq_CommercialRealEstateMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |