Note 11 - Stock-Based Compensation (Details) - Non-Full Value Awards, all of Which Have Been Granted as Stock Options: (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Non-Full Value Awards, all of Which Have Been Granted as Stock Options: [Abstract]
Shares	306,630		770,355
Weighted-Average Exercise Price	$ 16.02		$ 15.92
Weighted-Average Remaining Contractual Term	3 years 36 days
Aggregate Intrinsic Value $(000)	$ 1,436
Exercisable shares at December 31, 2013	284,390
Exercisable shares at December 31, 2013	$ 16.61
Exercisable shares at December 31, 2013	3 years
Exercisable shares at December 31, 2013	1,164	[1]
Vested but unexercisable shares at December 31, 2013	8,160
Vested but unexercisable shares at December 31, 2013	$ 8.44
Vested but unexercisable shares at December 31, 2013	5 years 36 days
Vested but unexercisable shares at December 31, 2013	$ 100	[1]
Exercised	(463,245)
Exercised	$ 15.86
Forfeited	(480)
Forfeited	$ 15.27

[1] * The intrinsic value of a stock option is the difference between the market value of the underlying stock and the exercise price of the option.