Note 12 - Income Taxes (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Apr. 30, 2011
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit)	$ (573,000)	$ 1,187,000	$ 186,000	$ 625,000
Effective Income Tax Rate Reconciliation, Percent	(5.40%)	13.80%	0.70%	3.90%
Unrecognized Tax Benefits	15,100,000		15,100,000		14,900,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	4,200,000		4,200,000		5,000,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	400,000		400,000		800,000
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority						$ 10,500,000