XML 99 R88.htm IDEA: XBRL DOCUMENT v3.20.2

Subsequent Events - Additional Information (Detail) $ in Thousands	1 Months Ended	6 Months Ended
	Aug. 05, 2020 USD ($) Loan	Jun. 30, 2019 USD ($) Contract
Subsequent Event [Line Items]
Number of loans modified | Contract		1
Loan modifications amount | $		$ 382
Subsequent Event [Member] | Second Modifications [Member]
Subsequent Event [Line Items]
Number of loans modified	75
Loan modifications amount | $	$ 95,153
Number of loans modified returned to making principal and interest payments	87
Subsequent Event [Member] | Original 90-day Modification Period [Member]
Subsequent Event [Line Items]
Number of loans modified	651
Subsequent Event [Member] | Interest Payments Deferral [Member] | Second Modifications [Member]
Subsequent Event [Line Items]
Number of loans modified	17
Loan modifications amount | $	$ 33,160

X

- Definition

Number of loans modified returned to making principal and interest payments.

+ References

No definition available.

+ Details

Name:	civb_NumberOfLoansModifiedReturnedToMakingPrincipalAndInterestPayments
Namespace Prefix:	civb_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationNameAxis=civb_SecondModificationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationNameAxis=civb_OriginalNinetyDayModificationPeriodMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=civb_InterestPaymentsDeferralMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: