Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
ASSETS
Cash and due from financial institutions	$ 142,339us-gaap_CashAndDueFromBanks	$ 29,858us-gaap_CashAndDueFromBanks
Securities available for sale	199,693us-gaap_AvailableForSaleSecurities	197,905us-gaap_AvailableForSaleSecurities
Loans held for sale	2,919us-gaap_LoansReceivableHeldForSaleNet	2,410us-gaap_LoansReceivableHeldForSaleNet
Loans, net of allowance of $14,315 and $14,268	969,790	900,589
Other securities	13,400	12,586
Premises and equipment, net	16,163us-gaap_PropertyPlantAndEquipmentNet	14,400us-gaap_PropertyPlantAndEquipmentNet
Accrued interest receivable	3,977	3,852
Goodwill	26,841us-gaap_Goodwill	21,720us-gaap_Goodwill
Other intangibles	2,949	2,025
Bank owned life insurance	19,754us-gaap_BankOwnedLifeInsurance	19,637us-gaap_BankOwnedLifeInsurance
Other assets	9,414us-gaap_OtherAssets	8,209us-gaap_OtherAssets
Total assets	1,407,239us-gaap_Assets	1,213,191us-gaap_Assets
Deposits
Noninterest-bearing	388,691	250,701
Interest-bearing	808,625	718,217
Total deposits	1,197,316us-gaap_Deposits	968,918us-gaap_Deposits
Federal Home Loan Bank advances	17,500	65,200
Securities sold under agreements to repurchase	21,488	21,613
Subordinated debentures	29,427us-gaap_SubordinatedDebt	29,427us-gaap_SubordinatedDebt
Accrued expenses and other liabilities	22,581civb_AccruedExpensesAndOtherLiabilities	12,124civb_AccruedExpensesAndOtherLiabilities
Total liabilities	1,288,312us-gaap_Liabilities	1,097,282us-gaap_Liabilities
SHAREHOLDERS' EQUITY
Common shares, no par value, 20,000,000 shares authorized, 8,569,557 shares issued at March 31, 2015 and 8,455,881 shares issued at December 31, 2014	115,193us-gaap_CommonStockValue	114,365us-gaap_CommonStockValue
Accumulated deficit	(1,924)	(4,306)
Treasury shares, 747,964 shares at cost	(17,235)us-gaap_TreasuryStockValue	(17,235)us-gaap_TreasuryStockValue
Accumulated other comprehensive income (loss)	584	(47)
Total shareholders' equity	118,927us-gaap_StockholdersEquity	115,909us-gaap_StockholdersEquity
Total liabilities and shareholders' equity	1,407,239	1,213,191
Series B Preferred Stock [Member]
SHAREHOLDERS' EQUITY
Preferred shares, no par value, 200,000 shares authorized, Series B Preferred stock, $1,000 liquidation preference, 24,111 shares issued at March 31, 2015 and 25,000 shares issued at December 31, 2014, net of issuance costs	$ 22,309	$ 23,132

Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, and other costs not separately disclosed in the balance sheet that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered.

No definition available.