Shareholders' Equity: (Tables)

12 Months Ended

Dec. 29, 2012

Shareholders' Equity:

Schedule of stock option activity under the 2001 Plan, 2010 Plan and Nonemployee Directors Plan

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (years)	Intrinsic Value
Outstanding at December 25, 2010	644,220		$	20.45	6.82	$	7,571,000
Granted	93,000		45.55
Exercised	(68,606	)	16.85
Outstanding at December 31, 2011	668,614		24.31		6.62	22,101,800
Granted	120,000		54.26
Exercised	(174,887	)	19.77
Outstanding at December 29, 2012	613,727		$	31.46	7.06	$	16,010,000
Exercisable at December 29, 2012	351,463		$	21.79	5.81	$	12,568,600

Schedule of weighted average assumptions used in estimation of fair value of options granted

	Year Ended
	December 29, 2012			December 31, 2011
Risk free interest interest rate	.88		%	1.54		%
Expected life (years)	6			6
Expected volatility	31.9		%	28.3		%
Dividend yield	2.05		%	.27		%
Option fair value	$	13.43		$	13.35

Schedule of options outstanding and options exercisable

Options outstanding as of December 29, 2012 are exercisable as follows:

			Options Outstanding							Options Exercisable
Range of Exercise Price			Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price			Number Exercisable		Weighted Average Exercise Price
$12.75	-	$18.40		136,726		5.97		$	14.05		124,348		$	14.15
20.32	-	31.19		219,001		5.46		23.60			182,123		22.69
32.92	-	51.17		139,250		8.59		40.74			33,621		34.52
53.34	-	57.34		118,750		9.46		55.13			11,371		53.34
				613,727		7.06		$	31.46		351,463		$	21.79