Note 9 - Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013
Note 9 - Income Taxes (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Percent	33.60%	36.80%
Unrecognized Tax Benefits	$ 0.7	$ 0.7	$ 1.2
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	0.3	0.3
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ (0.2)	$ (0.2)
Internal Revenue Service (IRS) [Member]
Note 9 - Income Taxes (Details) [Line Items]
Open Tax Year Subject To Examination		2008 through 2013
State and Foreign Jurisdictions [Member]
Note 9 - Income Taxes (Details) [Line Items]
Open Tax Year Subject To Examination		2008 to 2013