Note 13 - Shareholders' Equity (Tables)

12 Months Ended

Dec. 28, 2013

Stockholders' Equity Note [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Shares Under Option			Weighted Average Price		Weighted Average Remaining Contract Life (Years)		Aggregate Intrinsic Value (000’s)
Outstanding December 29, 2012		788,450		$	40.53
Granted		130,666			66.68
Exercised		(415,718	)		35.31
Forfeited		(7,195	)		31.09
Outstanding December 28, 2013		496,203			51.93		4.0	$	20,216
Exercisable December 28, 2013		254,978			39.71		2.4		13,504

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

	Shares			Weighted Average Grant-Date Fair Value
Nonvested December 29, 2012		183,287		$	53.18
Granted		103,042			65.47
Vested		(97,518	)		46.24
Forfeited		(4,238	)		60.06
Nonvested December 28, 2013		184,573			63.56

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2013			2012			2011
Weighted average fair value of options granted	$	23.90		$	23.38		$	24.25
Assumptions:
Risk-free interest rate		0.70	%		0.89	%		2.07	%
Expected dividend yield		1.20	%		1.14	%		0.97	%
Expected stock price volatility		45.0	%		46.0	%		46.0	%
Expected life of options (years)		5.1			5.1			5.1

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Pension liability adjustments (a)			Gain on investments (b)		Foreign currency translation adjustment			Accumulated other comprehensive income (loss)
Balance at December 30, 2011	$	(13,578	)	$	6,642	$	15,567		$	8,631
2012 activity		(7,301	)		1,225		13,993			7,917
Balance at December 29, 2012		(20,879	)		7,867		29,560			16,548
2013 activity		3,739			1,526		(1,396	)		3,869
Balance at December 28, 2013	$	(17,140	)	$	9,393	$	28,164		$	20,417