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Note A - Summary of Significant Accounting Policies - Composition of Loan Portfolio (Details) | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
% Total Loans | 100.00% | 100.00%
Residential Portfolio Segment [Member] |  |
% Total Loans | 40.19% | 38.92%
Commercial Real Estate Portfolio Segment [Member] |  |
% Total Loans | 27.74% | 29.12%
Consumer Portfolio Segment [Member] |  |
% Total Loans | 18.15% | 18.27%
Commercial Portfolio Segment [Member] |  |
% Total Loans | 13.92% | 13.69%

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