Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) (USD $)	3 Months Ended				12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Stockholders' Equity [Abstract]
Common stock cash dividend per share	$ 0.0625	$ 0.0625	$ 0.0625	$ 0.0625	$ 0.25	$ 0	$ 0