Note 12 - Accumulated Other Comprehensive Income (Loss) (AOCI) (Details) - Components of Accumulated Other Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 27, 2014		Dec. 28, 2013
Components of Accumulated Other Comprehensive Income (Loss) [Abstract]
Pension liability adjustment(a)	$ (17,141)	[1]	$ (17,140)	[1]
Pension liability adjustment(a)	(243)	[1]
Pension liability adjustment(a)	242	[1]
Unrealized gain on investments(b)	11,204	[2]	9,393	[2]
Unrealized gain on investments(b)	1,811	[2]
Unrealized gain on investments(b)		[2]
Foreign currency translation adjustment	12,891		28,164
Foreign currency translation adjustment	(15,273)
AOCI income (loss)	6,954		20,417
AOCI income (loss)	(13,705)
AOCI income (loss)	$ 242

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

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