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Note 7 - Loans and Related Allowance for Loan and Lease Losses (Details) - Troubled Debt Restructurings $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 USD ($) | Sep. 30, 2014 USD ($) | Sep. 30, 2015 USD ($) | Sep. 30, 2014 USD ($)
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts | 1 |  |  |
Pre-Modification Outstanding Recorded Investment (in Dollars) | $ 9 |  |  |
Post-Modification Outstanding Recorded Investment (in Dollars) | $ 9 |  |  |
Extended Maturity [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts | 1 |  |  |
Commercial and Industrial [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts | 2 | 1 | 4 | 2
Pre-Modification Outstanding Recorded Investment (in Dollars) | $ 15 | $ 75 | $ 126 | $ 82
Post-Modification Outstanding Recorded Investment (in Dollars) | $ 15 | $ 75 | $ 126 | $ 82
Commercial and Industrial [Member] | Extended Maturity [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts | 2 | 1 | 3 | 2
Commercial and Industrial [Member] | Other Restructurings [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts |  |  | 1 |
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts | 1 | 2 | 3 | 3
Pre-Modification Outstanding Recorded Investment (in Dollars) | $ 164 | $ 165 | $ 398 | $ 215
Post-Modification Outstanding Recorded Investment (in Dollars) | $ 164 | $ 165 | $ 418 | $ 215
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] | Extended Maturity [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts | 1 | 2 | 2 | 3
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] | Other Restructurings [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts |  |  | 1 |
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts |  |  |  | 1
Pre-Modification Outstanding Recorded Investment (in Dollars) |  |  |  | $ 73
Post-Modification Outstanding Recorded Investment (in Dollars) |  |  |  | $ 73
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member] | Extended Maturity [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts |  |  |  | 1
Real Estate Construction Porfolio Segment [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts |  |  | 1 |
Pre-Modification Outstanding Recorded Investment (in Dollars) |  |  | $ 181 |
Post-Modification Outstanding Recorded Investment (in Dollars) |  |  | $ 181 |
Real Estate Construction Porfolio Segment [Member] | Extended Maturity [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts |  |  | 1 |
Consumer Portfolio Segment [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts |  |  | 1 | 1
Pre-Modification Outstanding Recorded Investment (in Dollars) |  |  | $ 9 | $ 7
Post-Modification Outstanding Recorded Investment (in Dollars) |  |  | $ 9 | $ 7
Consumer Portfolio Segment [Member] | Extended Maturity [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts |  |  | 1 | 1

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