Note 14 - Financial Derivatives (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Positive Fair Value Member
Note 14 - Financial Derivatives (Details) [Line Items]
Notional Amount Of Option Contract	$ 1,200,000	$ 200,000
Open Option Contracts Written, at Fair Value	1,000	83
Sum of Spot and Forward Contract Notional Amount	270,700,000	267,600,000
Increase Decrease in Fair Value	5,100,000	6,200,000
Negative Fair Value Member
Note 14 - Financial Derivatives (Details) [Line Items]
Sum of Spot and Forward Contract Notional Amount	227,700,000	236,300,000
Increase Decrease in Fair Value	$ (3,300,000)	$ (6,100,000)