Interim Condensed Consolidated Statements of Stockholders' Equity (unaudited) (Parentheticals) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Preferred Stock [Member]
Dividends declared to preferred stockholders per share (in Dollars per share)	$ 0.2	$ 0.2
Common Stock [Member]
Dividends declared to common stockholders per share (in Dollars per share)	$ 0.3	$ 0.3