Note 12 - Long-Term Debt (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Eurodollar [Member] | Revolving Credit Facility [Member]
Note 12 - Long-Term Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.70%
Revolving Credit Facility [Member]
Note 12 - Long-Term Debt (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)	$ 75,000,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage (in Basis Points)	0.20%
Line of Credit Facility, Expiration Date	Oct. 22, 2014
Letter of Credit [Member]
Note 12 - Long-Term Debt (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)	$ 5,000,000
Line of Credit Facility, Commitment Fee Percentage	0.10%