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Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012 | Dec. 31, 2011
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | $ 749 |  | $ 5,148 |  | $ 214 |  | $ 14,802 |  | $ 12,666 |  | $ 9,325 |
Commercial Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Commercial Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Commercial Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 6,502 |  |  |  | 6,502 |  |  |  | 3,492 |  |  |
Commercial Loans [Member] | Impaired Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 6,502 |  |  |  | 6,502 |  |  |  | 3,492 |  |  |
Commercial Loans [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 0 |  | 1,983 |  | 536 |  | 2,848 |  | 0 |  | 877 |
Commercial Mortgage Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Commercial Mortgage Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Commercial Mortgage Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 28,533 |  |  |  | 28,533 |  |  |  | 11,295 |  |  |
Commercial Mortgage Loans [Member] | Impaired Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 28,533 |  |  |  | 28,533 |  |  |  | 11,295 |  |  |
Commercial Mortgage Loans [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 394 |  | 0 |  | 459 |  | 0 |  | 440 |  | 0 |
Construction Residential [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Construction Residential [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Construction Residential [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 500 |  |  |  | 500 |  |  |  | 500 |  |  |
Construction Residential [Member] | Impaired Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 500 |  |  |  | 500 |  |  |  | 500 |  |  |
Construction Residential [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Construction - Other Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Construction - Other Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Construction - Other Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 13,503 |  |  |  | 13,503 |  |  |  | 46,153 |  |  |
Construction - Other Loans [Member] | Impaired Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 13,503 |  |  |  | 13,503 |  |  |  | 46,153 |  |  |
Construction - Other Loans [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 0 |  | 0 |  | 0 |  | 0 |  | 65 |  | 0 |
Real Estate Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  |  |  |  |
Real Estate Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  |  |  |  |
Real Estate Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  |  |  |  |
Real Estate Loans [Member] | Impaired Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  |  |  |  |
Real Estate Loans [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 0 |  | 0 |  | 0 |  | 301 |  |  |  |  |
Residential Mortgage And Equity Lines Member | Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Residential Mortgage And Equity Lines Member | Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Residential Mortgage And Equity Lines Member | Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 13,404 |  |  |  | 13,404 |  |  |  | 11,206 |  |  |
Residential Mortgage And Equity Lines Member | Impaired Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 13,404 |  |  |  | 13,404 |  |  |  | 11,206 |  |  |
Residential Mortgage And Equity Lines Member | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 160 |  | 251 |  | 191 |  | 782 |  | 605 |  | 820 |
Land Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Land Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Land Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 27 |  |  |  | 27 |  |  |  | 297 |  |  |
Land Loans [Member] | Impaired Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 27 |  |  |  | 27 |  |  |  | 297 |  |  |
Land Loans [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 0 |  | 0 |  | 0 |  | 0 |  | 162 |  | 46 |
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 62,469 |  |  |  | 62,469 |  |  |  | 72,943 |  |  |
Impaired Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 62,469 |  |  |  | 62,469 |  |  |  | 72,943 |  |  |
Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 554 |  | 2,234 |  | 1,186 |  | 3,931 |  | 1,272 |  | 1,743 |
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 | [1] |  |  | 0 | [1] |  |  | 0 | [2] |  |
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 27,081 | [1] |  |  | 27,081 | [1] |  |  | 27,149 | [2] |  |
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 8,321 | [1] |  |  | 8,321 | [1] |  |  | 4,841 | [2] |  |
Other Real Estate Owned [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 35,402 | [1] |  |  | 35,402 | [1] |  |  | 31,990 | [2] |  |
Other Real Estate Owned [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 111 | [1] | 2,875 | [1] | (1,267) | [1] | 10,602 | [1] | 10,904 | [2] | 7,003 | [2]
Investments in Venture Capital [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Investments in Venture Capital [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Investments in Venture Capital [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 9,085 |  |  |  | 9,085 |  |  |  | 9,001 |  |  |
Investments in Venture Capital [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 9,085 |  |  |  | 9,085 |  |  |  | 9,001 |  |  |
Investments in Venture Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 84 |  | 39 |  | 295 |  | 226 |  | 309 |  | 379 |
Equity Investments [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 642 |  |  |  | 642 |  |  |  | 142 |  |  |
Equity Investments [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Equity Investments [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Equity Investments [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 642 |  |  |  | 642 |  |  |  | 142 |  |  |
Equity Investments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total Losses for the Year | 0 |  | 0 |  | 0 |  | 43 |  | 181 |  | 200 |
Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 642 |  |  |  | 642 |  |  |  | 142 |  |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 27,081 |  |  |  | 27,081 |  |  |  | 27,149 |  |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | 79,875 |  |  |  | 79,875 |  |  |  | 86,785 |  |  |
Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis Three and Six Months Ended [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Asstes Measured at Fair Value on a Nonrecurring Basis | $ 107,598 |  |  |  | $ 107,598 |  |  |  | $ 114,076 |  |  |
[1] | Other real estate owned balance of $49.8 million in the condensed consolidated balance sheet is net of estimated disposal costs.
[2] | Other real estate owned balance of $46.4 million in the condensed consolidated balance sheet is net of estimated disposal costs.

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