Note 7 - Restructuring Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								6 Months Ended	12 Months Ended	3 Months Ended	6 Months Ended
	Dec. 30, 2012 Employee Severance [Member] Restructuring Charge 2012 [Member]	Sep. 30, 2012 Employee Severance [Member] Restructuring Charge 2012 [Member]	Apr. 01, 2012 Employee Severance [Member] Restructuring Charge 2012 [Member]	Jan. 01, 2012 Employee Severance [Member] Restructuring Charge 2011 [Member]	Apr. 01, 2012 Other Restructuring [Member] Restructuring Charge 2012 [Member]	Apr. 01, 2012 Fixed Asset Impairment [Member] Restructuring Charge 2012 [Member]	Jan. 01, 2012 Contract Termination and Asset Impairment [Member] Restructuring Charge 2011 [Member]	Apr. 01, 2012 Restructuring Charge 2012 [Member]	Jun. 30, 2013 Restructuring Charge 2012 [Member]	Dec. 30, 2012 Restructuring Charge 2012 [Member]	Jan. 01, 2012 Restructuring Charge 2011 [Member]	Jun. 30, 2013 Restructuring Charge 2011 [Member]
Note 7 - Restructuring Charges (Details) [Line Items]
Restructuring Charges	$ 2.3	$ 0.8	$ 5.4	$ 5.0	$ 1.6	$ 9.3	$ 0.8	$ 16.3			$ 5.8
Effect on Future Cash Flows, Amount									$ 7.0			$ 5.0
Restructuring and Related Cost, Number of Positions Eliminated										145	90