Note 10 - Preferred Stock and Common Stock (Tables)

3 Months Ended

Mar. 31, 2016

Notes Tables

Schedule of Stockholders Equity [Table Text Block]

As of March 31, 2016 and December 31, 2015
Series of  Preferred  Stock	Shares Authorized		Shares Issued and Outstanding		Liquidation Preference (in thousands)		Dividend Rate			Annual Dividend per Depositary Share		Par Value
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
		35,450		32,000	$	800,000