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LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES (Details Narrative 2) (USD $)
12 Months Ended
Dec. 31, 2014
N
Dec. 31, 2013
N
Loans and Leases Receivable Disclosure [Abstract]    
Minimum period of restructured loan past due 90 days  
Minimum amount required for loan to be reviewed at least annually to determine appropriate loan grading $ 750,000czbs_LoansAndLeasesReceivableMinimumAmountRequiredForLoanToBeReviewedAtLeastAnnuallyToDetermineAppropriateLoanGrading  
Number of loans for which Term was Extended   4czbs_FinancingReceivableModificationsNumberOfContractsForWhichTermWasExtended
Number of loans for which interest rate was modified 2czbs_FinancingReceivableModificationsNumberOfContractsForWhichPaymentAndInterestRateLowered 7czbs_FinancingReceivableModificationsNumberOfContractsForWhichPaymentAndInterestRateLowered
Troubled Debt Restructurings that subsequently defaulted 0us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1 1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1