XML 121 R101.htm IDEA: XBRL DOCUMENT v3.22.4

Short-Term Borrowings - Additional Information (Detail)	Dec. 31, 2022
Short-Term Debt [Abstract]
Average maturity days	20 days 4 hours

X

- Definition

Short term borrowings maturity date.

+ References

No definition available.

+ Details

Name:	civb_ShortTermBorrowingsMaturityDate
Namespace Prefix:	civb_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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