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Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | $ 16,654 | [1] | $ 13,540 | [1] | $ 8,734 | [1],[2]
Interest income recognized | 267 |  | 9 |  | 141 | [2]
Real Estate Construction [Member] | Construction residential [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 40 | [1] | 1,171 | [1] |  |
Real Estate Construction [Member] | Construction other [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 2,885 | [1] | 4,290 | [1] |  |
Interest income recognized |  |  | 1 |  |  |
Consumer Real Estate Loans [Member] | Scenario, Previously Reported [Member] | Closed-end Consumer Real Estate [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 450 | [1],[2],[3]
Interest income recognized |  |  |  |  | 3 | [2],[3]
Consumer Real Estate Loans [Member] | Residential closed end first liens [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 364 | [1] | 873 | [1] |  |
Interest income recognized | 3 |  | 2 |  |  |
Consumer Real Estate Loans [Member] | Residential closed end junior liens [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 280 | [1] | 234 | [1] |  |
Interest income recognized | 9 |  |  |  |  |
Consumer Real Estate Loans [Member] | Investor-owned residential real estate [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 131 | [1] |  |  |  |
Interest income recognized | 6 |  |  |  |  |
Consumer Real Estate Loans [Member] | Equity Lines [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  | 101 | [1] |  |
Commercial Real Estate Loans [Member] | Scenario, Previously Reported [Member] | Commercial real estate, other [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 1,139 | [1],[2]
Interest income recognized |  |  |  |  | 24 | [2]
Commercial Real Estate Loans [Member] | Scenario, Previously Reported [Member] | College Housing [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 281 | [1],[2],[3]
Interest income recognized |  |  |  |  | 7 | [2],[3]
Commercial Real Estate Loans [Member] | Scenario, Previously Reported [Member] | Office and Retail [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 292 | [1],[2],[3]
Interest income recognized |  |  |  |  |  | [2],[3]
Commercial Real Estate Loans [Member] | Scenario, Previously Reported [Member] | Hotels [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 3,445 | [1],[2],[3]
Interest income recognized |  |  |  |  | 41 | [2],[3]
Commercial Real Estate Loans [Member] | Scenario, Previously Reported [Member] | Medical Professionals [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 67 | [1],[2],[3]
Interest income recognized |  |  |  |  | 5 | [2],[3]
Commercial Real Estate Loans [Member] | Scenario, Previously Reported [Member] | General Contractors [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 112 | [1],[2],[3]
Interest income recognized |  |  |  |  | 4 | [2],[3]
Commercial Real Estate Loans [Member] | Multifamily real estate [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 4,172 | [1] | 1,466 | [1] |  |
Interest income recognized |  |  | 5 |  |  |
Commercial Real Estate Loans [Member] | Commercial real estate, owner occupied [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 5,265 | [1] | 4,806 | [1] |  |
Interest income recognized | 136 |  | 1 |  |  |
Commercial Real Estate Loans [Member] | Commercial real estate, other [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 3,369 | [1] |  |  |  |
Interest income recognized | 110 |  |  |  |  |
Commercial Non Real Estate [Member] | Commercial and Industrial [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 117 | [1] | 570 | [1] |  |
Interest income recognized | 3 |  |  |  |  |
Consumer Non Real Estate [Member] | Automobile [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 31 | [1] | 4 | [1] |  |
Consumer Non Real Estate [Member] | Other Consumer Loans [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  | 25 | [1] |  |
Commercial and Industrial [Member] | Scenario, Previously Reported [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 553 | [1],[2],[3]
Interest income recognized |  |  |  |  |  | [2],[3]
Construction, Development & Other Land [Member] | Scenario, Previously Reported [Member] | Residential [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 2,143 | [1],[2],[3]
Interest income recognized |  |  |  |  | 49 | [2],[3]
Construction, Development & Other Land [Member] | Scenario, Previously Reported [Member] | Commercial [Member] |  |  |  |  |  |
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 252 | [1],[2],[3]
Interest income recognized |  |  |  |  | $ 8 | [2],[3]
[1] | Recorded investment includes principal, accrued interest, and deferred fees and costs.
[2] | Segments reported for December 31, 2011 are presented using the segmentation method in effect for 2011. The Company began reporting under revised segments in 2012.
[3] | Only classes with impaired loans are shown.

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524 + Details
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