Note 12 - Preferred Stock and Common Stock (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Stockholders Equity [Table Text Block]

As of June 30, 2017 and December 31, 201 6
Series of  Preferred  Stock	Shares Authorized		Shares Issued and Outstanding		Liquidation Preference (in thousands)		Dividend Rate			Annual Dividend per Depositary Share		Par Value		Optional Redemption Date
Series I		18,400		16,000	$	400,000		6.00	%	$	1.50000	$	1.00	3/20/2017
Series J		9,000		9,000		225,000		5.50	%	$	1.37500	$	1.00	7/25/2017
Series K		8,050		7,000		175,000		5.625	%	$	1.40625	$	1.00	12/7/2017
		35,450		32,000	$	800,000