Loans and Allowance for Credit Losses, Credit Quality Indicators (Details) $ in Thousands	Dec. 31, 2023 USD ($)
CARES Act [Member]
Credit Quality Indicators [Abstract]
Aggregate loan amount that are reviewed risk categories	$ 1,000

Minimum loan balance for impaired loans on nonaccrual status or nonperforming in nature.

No definition available.

Name:	ovbc_MinimumLoanBalanceForLoansEvaluatedByRiskCategories
Namespace Prefix:	ovbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant