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Restrictions on Cash and Due From Banks (Details Textual) (USD $) | Dec. 31, 2012 | Dec. 31, 2011
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Reserve Balance With Federal Reserve Bank | $ 594,000 | $ 1,230,000

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