Consolidated Statements of Changes in Equity (Unaudited) (Parentheticals) - $ / shares	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Statement of Stockholders' Equity [Abstract]
Cash dividends per share preferred stock (in dollars per share)	$ 7.50	$ 7.50
Cash dividends per share common stock (in dollars per share)	$ 0.30	$ 0.30
Shares of common stock purchased	54,389	24,042
Shares of common stock issued	2,180,585	182,392