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Note 7 - Loans And Related Allowance For Loan Losses (Details) - Troubled Debt Restructurings That Subsequently Defaulted (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Commercial and Industrial [Member] |  |  |  |
Note 7 - Loans And Related Allowance For Loan Losses (Details) - Troubled Debt Restructurings That Subsequently Defaulted [Line Items] |  |  |  |
Number of contracts | 3 | 0 | 5 | 1
Recorded Investment (in Dollars) | $ 193 | $ 0 | $ 239 | $ 41
Residential Real Estate Mortgage [Member] |  |  |  |
Note 7 - Loans And Related Allowance For Loan Losses (Details) - Troubled Debt Restructurings That Subsequently Defaulted [Line Items] |  |  |  |
Number of contracts | 0 | 3 | 0 | 3
Recorded Investment (in Dollars) | $ 0 | $ 168 | $ 0 | $ 168

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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524 + Details
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