Note 14 - Income Taxes (Details) (USD $)	3 Months Ended			6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Note 14 - Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit) (in Dollars)	$ 5,303,000	$ 7,345,000		$ 11,167,000	$ 12,760,000
Effective Income Tax Rate Reconciliation, Percent	37.10%	36.80%	35.20%	37.20%	35.20%
Unrecognized Tax Benefits (in Dollars)	$ 1,100,000			$ 1,100,000		$ 800,000
Scenario, Forecast [Member]
Note 14 - Income Taxes (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Percent				37.20%