Note 2 - Long-term Debt (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Note 2 - Long-term Debt (Details) [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 30,000,000	$ 30,000,000
2012 Senior Credit Facility [Member]
Note 2 - Long-term Debt (Details) [Line Items]
Line of Credit Facility, Amount Outstanding	159,000,000	159,000,000
Line of Credit Facility, Interest Rate at Period End	4.50%	4.80%
Deferred Finance Costs, Net	3,700,000	3,900,000
Revolving Loan [Member]
Note 2 - Long-term Debt (Details) [Line Items]
Letters of Credit Outstanding, Amount	10,000,000	10,000,000
Line of Credit Facility, Remaining Borrowing Capacity	30,000,000	30,000,000
2020 Notes [Member]
Note 2 - Long-term Debt (Details) [Line Items]
Unsecured Debt	675,000,000	675,000,000
Debt Instrument, Interest Rate, Effective Percentage	7.50%	7.60%
Deferred Finance Costs, Net	12,800,000	13,200,000
Excalibur Loan [Member]
Note 2 - Long-term Debt (Details) [Line Items]
Long-term Debt, Gross	2,950,000	3,000,000
Debt Instrument, Interest Rate, Effective Percentage	4.75%	4.75%
Deferred Finance Costs, Net	$ 200,000	$ 200,000