Note 3 - Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Note 3 - Income Taxes (Details) [Line Items]
Deferred Tax Liabilities, Net	$ 13.7
Deferred Tax Assets, Valuation Allowance	42.0	$ 32.0
Domestic Tax Authority [Member]
Note 3 - Income Taxes (Details) [Line Items]
Deferred Tax Assets, Valuation Allowance	19.7
Internal Revenue Service (IRS) [Member]
Note 3 - Income Taxes (Details) [Line Items]
Deferred Tax Assets, Net	112.6
Canada Revenue Agency [Member]
Note 3 - Income Taxes (Details) [Line Items]
Deferred Tax Liabilities, Net	$ 126.3