Note 6 - Treasury Stock (Details) (USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Feb. 28, 2014	Apr. 30, 2013
Stockholders' Equity Note [Abstract]
Stock Repurchase Program, Authorized Amount		$ 100.0	$ 50.0
Stock Repurchased During Period, Shares (in Shares)	4,317,278
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share)	$ 11.72
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 42.7