Note 2 - Earnings per Share (Details) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Text Block]
Weighted Average Dilutive Stock Options and Restricted Stock Outstanding	5.3	2.9	5.7	2.9