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Restrictions on Cash and Due From Banks (Details Textual) (USD $) | Dec. 31, 2013 | Dec. 31, 2012
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Restrictions On Cash and Due From Banks [Line Items] |  |
Reserve Balance With Federal Reserve Bank | $ 724,000 | $ 594,000

X
- Definition It represents reserve balance is required to be maintained by bank with Federal Reserve bank. + References No definition available. + Details
Name: | csbq_ReserveBalanceWithFederalReserveBank
Namespace Prefix: | csbq_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | csbq_RestrictionsOnCashAndDueFromBanksLineItems
Namespace Prefix: | csbq_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration