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Note 11 - Capital Resources (Details) (USD $) | 0 Months Ended | 1 Months Ended | 12 Months Ended |  | 1 Months Ended | 9 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 09, 2013 | Dec. 05, 2008 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Sep. 29, 2006 | Mar. 31, 2011 Subordinated Debt Obligations [Member] | Sep. 29, 2006 Subordinated Debt Obligations [Member] | Dec. 31, 2011 Subordinated Debt Obligations [Member] | Dec. 31, 2012 Subordinated Debt Obligations [Member] | Dec. 05, 2008 Series B Preferred Stock [Member] | Dec. 31, 2013 Series B Preferred Stock [Member] | Dec. 05, 2008 First Five Years [Member] | Dec. 05, 2008 After Five Years [Member]
Note 11 - Capital Resources (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Preferred Stock and Preference Stock |  | $ 258,000,000 |  |  |  |  |  |  |  |  |  | $ 258,000,000 |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% | 9.00%
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) |  | 1,846,374 | 1,846,374 | 1,846,374 |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item) |  | 20.96 | 20.96 | 20.96 |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding |  |  | 38,700,000 | 38,700,000 |  |  |  |  |  |  |  |  |  |  |
Percent Of Senior Preferred Stock Invested |  |  | 15.00% | 15.00% |  |  |  |  |  |  |  |  |  |  |
Stock Redeemed or Called During Period, Value |  |  |  |  |  |  |  |  |  |  |  |  | 258,000,000 |  |
Sale Of Warrant Consideration Received On Transaction | 13,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Warrants, Price Per Share (in Dollars per share) | $ 7.20 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subordinated Debt |  |  |  |  |  |  | 50,000,000 |  |  |  |  |  |  |  |
Debt Instrument, Term |  |  |  |  |  |  |  |  | 10 years |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate (in Basis Points) |  |  |  |  |  |  |  | 1.10% | 1.10% | 3.30% | 1.10% |  |  |  |
Debt, Weighted Average Interest Rate |  |  |  |  |  |  |  |  |  |  | 3.61% |  |  |  |
Subordinated Debt Prepayment Penalty |  |  | 2,000 |  |  |  |  |  |  |  |  |  |  |  |
Interest Expense, Subordinated Notes and Debentures |  |  |  | $ 3,000,000 | $ 3,200,000 | $ 3,000,000 |  |  |  |  |  |  |  |  |

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