Note 13 - Shareholders' Equity (Tables)

12 Months Ended

Jan. 02, 2016

Notes Tables

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 27, 2014		421,862		$	67.88
Granted		145,140			96.18
Exercised		(95,548	)		48.74
Forfeited		(550	)		29.68
Outstanding January 2, 2016		470,904			80.53		4.8	$	12,470
Exercisable January 2, 2016		199,472			66.23		3.6		8,135

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

	Shares			Weighted Average Grant-Date Fair Value
Nonvested December 27, 2014		188,998		$	78.91
Granted		103,002			94.10
Vested		(88,901	)		73.59
Forfeited		(8,638	)		80.40
Nonvested January 2, 2016		194,461			89.32

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

	201 5			201 4			201 3
Weighted average fair value of options granted	$	21.99		$	26.25		$	23.90
Assumptions:
Risk-free interest rate		1.25	%		1.67	%		0.70	%
Expected dividend yield		1.04	%		0.93	%		1.20	%
Expected stock price volatility		28.0	%		33.0	%		45.0	%
Expected life of options (years)		4.6			4.6			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 28, 2013	$	(17,140	)	$	9,393	$	28,164		$	20,417
2014 activity		(12,475	)		1,398		(30,466	)		(41,543	)
Balance at December 27, 2014		(29,615	)		10,791		(2,302	)		(21,126	)
2015 activity		20,893			793		(46,231	)		(24,545	)
Balance at January 2, 2016	$	(8,722	)	$	11,584	$	(48,533	)	$	(45,671	)