Note 16 - Quarterly Financial Data (Unaudited) (Details Textual) - 3 months ended Jun. 30, 2015 - USD ($) $ in Millions	Total
Result of Unfavorable Exchange Rates [Member] | International [Member]
Decrease in Gross Margin From Prior Period	$ 2.5
Result of Unfavorable Exchange Rates [Member]
Decrease in Net Sales from Prior Period	7.8
Decrease as Result of Pension Increases [Member] | International [Member]
Decrease in Gross Margin From Prior Period	$ 1.0
Brazil, Brazil Real
Decline in Foreign Currency Exchange Rate	28.00%
North America [Member]
Decrease in Gross Margin From Prior Period	$ 2.4
International [Member]
Decrease in Gross Margin From Prior Period	4.6
Decrease in Net Sales from Prior Period	8.1
Decrease in Gross Margin From Prior Period	$ 7.0