Note 2 - Reclassifications and Adjustments (Details) - Reclassifications and Adjustments Summary - Consolidated Statements of Net Income and Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Dec. 29, 2012
Impairment and equity in net loss of unconsolidated affiliate		$ 1,965	$ 10,678	$ 3,523	$ 4,000
Income before income taxes		29,028		85,202
Income taxes	9,534	6,250	21,461	21,898
Net income	26,990	22,778	68,432	63,304
Basic Earnings per share (in Dollars per share)	$ 1.20	$ 1.04	$ 3.07	$ 2.90
Diluted Earnings per share (in Dollars per share)	$ 1.19	$ 1.03	$ 3.04	$ 2.87
Comprehensive income		33,100		74,487
Scenario, Previously Reported [Member]
Income before income taxes		30,993		88,725
Income taxes		6,995		23,234
Net income		23,998		65,491
Basic Earnings per share (in Dollars per share)		$ 1.09		$ 3.00
Diluted Earnings per share (in Dollars per share)		$ 1.08		$ 2.96
Comprehensive income		34,320		76,674
Scenario, Adjustment [Member]
Impairment and equity in net loss of unconsolidated affiliate		1,965		3,523
Income before income taxes		(1,965)		(3,523)
Income taxes		(745)		(1,336)
Net income		(1,220)		(2,187)
Basic Earnings per share (in Dollars per share)		$ (0.05)		$ (0.10)
Diluted Earnings per share (in Dollars per share)		$ (0.05)		$ (0.09)
Comprehensive income		$ (1,220)		$ (2,187)