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Note 20 - Incentive Plans (Details) - Stock Options - Significant Fair Value Assumptions (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Stock Options - Significant Fair Value Assumptions [Abstract]      
Weighted average fair value of options granted (in Dollars per share) $ 5.04 $ 4.52 $ 4.39
Weighted average risk-free interest rates 1.46% 1.04% 2.02%
Weighted average expected option lives (in years) 6 years 3 months 6 years 3 months 6 years 3 months
Weighted average expected volatility 35.95% 37.53% 36.82%
Weighted average expected dividend yield 3.85% 3.94% 3.98%