Consolidated Statements of Changes in Equity (Unaudited) (Parentheticals) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash dividends per share preferred stock (in dollars per share)	$ 10.89	$ 36.60
Cash dividends per share common stock (in dollars per share)	$ 0.30	$ 0.30
Shares of common stock purchased	59,174	113,438
Shares of common stock issued	182,392	133,889