Note 9 - Income Taxes (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Note 9 - Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit)	$ 1,187,000	$ 555,000	$ 625,000	$ 1,412,000
Effective Income Tax Rate Reconciliation, Percent	13.80%	8.60%	3.90%	8.30%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			34.00%	34.00%
Unrecognized Tax Benefits	14,300,000		14,300,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	4,800,000		4,800,000
Minimum [Member]
Note 9 - Income Taxes (Details) [Line Items]
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority	$ 10,500,000		$ 10,500,000