Note 12 - Accumulated Other Comprehensive Income (Loss) (AOCI) (Details) - Components of Accumulated Other Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014		Mar. 30, 2013
Components of Accumulated Other Comprehensive Income (Loss) [Abstract]
Pension liability adjustment(a)	$ (17,140)	[1]
Pension liability adjustment(a)	(44)	[1]	(194)
Pension liability adjustment(a)	87	[1]
Pension liability adjustment(a)	(17,184)	[1]
Unrealized gain on investments(b)	9,393	[2]
Unrealized gain on investments(b)	1,308	[2]
Unrealized gain on investments(b)	10,701	[2]
Unrealized gain on investments(b)		[2]
Foreign currency translation adjustment	28,164
Foreign currency translation adjustment	(7,161)		(5,250)
Foreign currency translation adjustment	21,003
AOCI income (loss)	20,417
AOCI income (loss)	(5,984)
AOCI income (loss)	87
AOCI income (loss)	$ 14,520

[1] Balances are net of tax of $6,566 and $6,549 for 2014 and 2013, respectively.

[2] Balances are net of tax of $0 and $0 for 2014 and 2013, respectively.