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NOTE 8 - Subsequent Events (Details) (OVBC Captive [Member], USD $)	1 Months Ended
	Jul. 31, 2014
OVBC Captive [Member]
NOTE 8 - Subsequent Events (Details) [Line Items]
Premium Income Threshold	$ 1,200,000

X

- Details

Name:	ovbc_NOTE8SubsequentEventsDetailsLineItems
Namespace Prefix:	ovbc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This item represents the maximum premiums that the Subsidiary can receive in order to be taxed solely on investment income.

+ References

No definition available.

+ Details

Name:	ovbc_PremiumIncomeThreshold
Namespace Prefix:	ovbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration