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Note 1 - Basis of Preparation (Details Textual) $ in Millions	9 Months Ended
	Oct. 01, 2016 USD ($)
Restatement Adjustment [Member]
Increase Decrease In Equity Components	$ 10.5
Reclassification of Total Current Assets to Noncurrent Deferred Tax Assets [Member]
Prior Period Reclassification Adjustment	(1.7)
Reclassification of Noncurrent Deferred Tax Assets from Total Current Assets and Noncurrent Other Assets, Net [Member]
Prior Period Reclassification Adjustment	2.7
Reclassification of Noncurrent Other Assets, Net to Noncurrent Deferred Tax Assets [Member]
Prior Period Reclassification Adjustment	$ 1.0