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Shareholders' Equity (Deficit): (Tables)

6 Months Ended

Jun. 25, 2016

Shareholders' Equity (Deficit):

Schedule of stock option activity

		Number of Shares		Weighted Average Exercise Price			Weighted Average Remaining Contractual Life (years)		Intrinsic Value
Outstanding at December 26, 2015		668,740		$	53.73		6.41		$	25,582,300
Granted		34,300		98.25
Exercised		(2,187	)	68.69
Forfeited		(3,501	)	80.31
Outstanding at June 25, 2016		697,352		$	55.74		6.09		$	29,349,500
Exercisable at June 25, 2016		489,067		$	44.07		5.03		$	26,275,800

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

		Six Months Ended
		June 25, 2016			June 27, 2015
Risk free interest rate		1.52		%	1.68		%
Expected life (years)		6			6
Expected volatility		27.1		%	30.8		%
Dividend yield		1.38		%	1.34		%
Option fair value		$	23.78		$	25.48

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- References

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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