Note 13 - Preferred Stock (Tables) (Outstanding Preferred Stock [Member])

6 Months Ended

Jun. 30, 2014

Outstanding Preferred Stock [Member]

Note 13 - Preferred Stock (Tables) [Line Items]

Schedule of Stockholders Equity [Table Text Block]

As of June 30, 2014 and December 31, 2013
Series of Preferred Stock	Shares Authorized		Shares Issued and Outstanding		Liquidation Preference (in thousands)		Dividend Rate			Annual Dividend per Depositary Share		Par Value
Series H		70,000		70,000	$	175,000		6.90	%	$	1.72500	$	1.00
Series I		18,400		16,000		400,000		6.00	%	$	1.50000	$	1.00
Series J		9,000		9,000		225,000		5.50	%	$	1.37500	$	1.00
Series K		8,050		7,000		175,000		5.625	%	$	1.40625	$	1.00
		105,450		102,000	$	975,000