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Note A - Summary of Significant Accounting Policies - Composition of Loan Portfolio (Details) | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
% Total Loans | 100.00% | 100.00%
Residential Portfolio Segment [Member] |  |
% Total Loans | 38.92% | 38.22%
Commercial Real Estate Portfolio Segment [Member] |  |
% Total Loans | 29.12% | 28.90%
Consumer Portfolio Segment [Member] |  |
% Total Loans | 18.27% | 18.89%
Commercial Portfolio Segment [Member] |  |
% Total Loans | 13.69% | 13.99%

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- Definition The percentage of the loan portfolio. + References No definition available. + Details
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Namespace Prefix: | ovbc_
Data Type: | num:percentItemType
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Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |