Note 13 - Stockholders' Equity and Earnings per Share (Details) (USD $)	0 Months Ended		3 Months Ended							12 Months Ended									24 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended
	Dec. 09, 2013	Dec. 05, 2008	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Equity Option [Member]	Dec. 31, 2012 Equity Option [Member]	Dec. 31, 2012 Warrant [Member]	Dec. 31, 2013 Series A Non-Cumulative Preferred Stock [Member]	Dec. 31, 2012 Series A Non-Cumulative Preferred Stock [Member]	Dec. 31, 2011 Series A Non-Cumulative Preferred Stock [Member]	Dec. 31, 2004 Series A Non-Cumulative Preferred Stock [Member]	Dec. 05, 2008 Series B Preferred Stock [Member]	Dec. 31, 2013 Series B Preferred Stock [Member]	Dec. 05, 2008 Series B Preferred Stock [Member] First Five Years [Member]	Dec. 05, 2008 Series B Preferred Stock [Member] After Five Years [Member]
Note 13 - Stockholders' Equity and Earnings per Share (Details) [Line Items]
Regulation Restricted On Amount Of Retained Earnings Available For Cash Dividends										$ 54,000,000
Proceeds from Issuance of Preferred Stock and Preference Stock		258,000,000																	8,600,000	258,000,000
Preferred Stock, Dividend Rate, Percentage																			7.00%			5.00%	9.00%
Dividends, Preferred Stock			(2,434,000)	(2,067,000)	(5,184,000)	(4,127,000)	(4,123,000)	(4,121,000)	(4,117,000)	9,685,000	16,488,000	16,437,000				605,000	605,000	605,000
Preferred Stock, Shares Issued (in Shares)						258,000					258,000									258,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)		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
Warrants Aggregate Market Price (in Dollars per share)		$ 38,700,000
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
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)													2,200,000	4,000,000	1,800,000