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Commitments and Contingent Liabilities (Details) $ in Thousands | Jun. 30, 2015 USD ($)
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Unused Commitments to Extend Credit | $ 40,800
Outstanding Off balance Sheet Risks Amount Liability | $ 239

X
- Definition Contractual amount for all off-balance sheet commitments. + References No definition available. + Details
Name: | csbq_OutstandingOffBalanceSheetRisksAmountLiability
Namespace Prefix: | csbq_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unused amount of commitments to extend credit to customers. + References No definition available. + Details
Name: | us-gaap_UnusedCommitmentsToExtendCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant