Note 19 - Equity Incentive Plans (Details) - Stock Options - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stock Options [Abstract]
Balance - shares	3,996,630	1,031,170	2,332,904	2,812,874
Balance - weighted-average exercise price	$ 29.45	$ 31.27	$ 32.34	$ 31.81
Balance - weighted-average remaining contractual life	2 years 73 days	328 days	1 year 73 days	1 year 328 days
Balance - aggregate intrinisc value		$ 3,268	$ 1,388	$ 2,119
Exercised - shares		(214,580)	(5,500)	(594,946)
Exercised - weighted-average exercise price		$ 23.37	$ 23.37	$ 24.80
Forfeited - shares		(1,087,154)	(474,470)	(588,810)
Forfeited - weighted-average exercise price		$ 35.13	$ 29.28	$ 22.86
Exercisable, December 31, 2015		1,031,170
Exercisable, December 31, 2015		$ 31.27