Note 9 - Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Note 9 - Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit)	$ (357,000)	$ 548,000	$ (562,000)	$ 857,000
Effective Income Tax Rate Reconciliation, Percent	7.00%	7.70%	7.60%	8.20%
Unrecognized Tax Benefits	13,700,000		13,700,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	4,700,000		4,700,000
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