Note 3 - Income Taxes (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Note 3 - Income Taxes (Details) [Line Items]
Deferred Tax Liabilities, Net	$ 23.6
Deferred Tax Assets, Valuation Allowance	38.0	$ 32.0
Internal Revenue Service (IRS) [Member]
Note 3 - Income Taxes (Details) [Line Items]
Deferred Tax Assets, Net	114.5
Canada Revenue Agency [Member]
Note 3 - Income Taxes (Details) [Line Items]
Deferred Tax Liabilities, Net	$ 138.1