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Fair Value Disclosures (Details 2) (Fair Value, Inputs, Level 3 [Member], USD $) | 12 Months Ended
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Dec. 31, 2014
Impaired Loans [Member] |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
Assets, Fair Value Disclosure, Nonrecurring | $ 2,190,522us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByAssetClassAxis = csbq_ImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member
Fair Value Measurements, Valuation Techniques | Appraisal
Fair Value Measurements, Significant Other Unobservable Input | Appraisal discounts (%)
Fair Value Inputs, Weighted Average of Input | 28.90%csbq_FairValueInputsWeightedAverageOfInput / us-gaap_FairValueByAssetClassAxis = csbq_ImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member
Foreclosed assets [Member] |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
Assets, Fair Value Disclosure, Nonrecurring | $ 8,000,365us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByAssetClassAxis = csbq_ForeclosedAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member
Fair Value Measurements, Valuation Techniques | Appraisal
Fair Value Measurements, Significant Other Unobservable Input | Appraisal discounts (%)
Fair Value Inputs, Weighted Average of Input | 14.50%csbq_FairValueInputsWeightedAverageOfInput / us-gaap_FairValueByAssetClassAxis = csbq_ForeclosedAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member

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- Definition Weighted average rate of the fair value input. + References No definition available. + Details
Name: | csbq_FairValueInputsWeightedAverageOfInput
Namespace Prefix: | csbq_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureNonrecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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- Definition Description of significant assumptions used by management to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 + Details
Name: | us-gaap_FairValueMeasurementsSignificantAssumptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Description of the inputs and valuation technique(s) used to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementsValuationTechniques
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_FairValueByAssetClassAxis=csbq_ImpairedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |