Consolidated Statements Of Stockholders' Equity (Parentheticals)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statement of Stockholders' Equity [Abstract]
Purchase of Common shares for Treasury		278,655	493
Issuance of Common shares, net of forfeitures	75,995	50,528	113,667