Note 19 - Equity Incentive Plans (Details) - Stock Options (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended				12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stock Options [Abstract]
Balance - shares	2,332,904	2,812,874	3,996,630	4,356,985	2,812,874	3,996,630
Balance - weighted-average exercise price	$ 32.34	$ 31.81	$ 29.45	$ 28.86	$ 31.81	$ 29.45
Balance - weighted-average remaining contractual life	1 year 73 days	1 year 328 days	2 years 73 days	3 years	1 year 73 days
Balance - aggregate intrinisc value	$ 1,388	$ 2,119		$ 37	$ 2,119
Exercisable, December 31, 2014					2,332,904
Exercisable, December 31, 2014					$ 32.34
Exercisable, December 31, 2014	1 year 73 days
Exercisable, December 31, 2014					1,388
Exercised - shares					(5,500)	(594,946)	(50,024)
Exercised - weighted-average exercise price					$ 23.37	$ 24.80	$ 15.27
Forfeited - shares					(474,470)	(588,810)	(310,331)
Forfeited - weighted-average exercise price					$ 29.28	$ 22.86	$ 23.75
Balance - shares					2,332,904	2,812,874	3,996,630
Balance - weighted-average exercise price					$ 32.34	$ 31.81	$ 29.45
Balance - aggregate intrinisc value					$ 1,388	$ 2,119