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