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Shareholders' Equity (Deficit): (Tables)

9 Months Ended

Sep. 29, 2018

Shareholders' Equity (Deficit):

Schedule of stock option activity

							Weighted Average
							Remaining
		Number of		Weighted Average			Contractual Life
		Shares		Exercise Price			(years)			Intrinsic Value
Outstanding, December 30, 2017		658,184		$	72.33		5.87		$	37,723,800
Granted		35,000			143.20
Exercised		(64,143)			38.53
Forfeited		(4,063)			113.95
Outstanding, September 29, 2018		624,978		$	79.50		5.57		$	54,061,200
Exercisable, September 29, 2018		450,889		$	64.15		4.50		$	45,923,100

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

		Nine Months Ended
		September 29, 2018			September 30, 2017
Risk free interest rate			2.73	%		1.90	%
Expected life (years)			6			6
Expected volatility			20.40	%		26.93	%
Dividend yield			1.17	%		1.14	%
Option fair value		$	31.44		$	31.38

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- References

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- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ 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 (d)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
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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=96867065&loc=d3e5070-113901

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