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Shareholders' Equity: (Tables)

3 Months Ended

Mar. 28, 2015

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 27, 2014		597,700		$	48.50		6.93		$	20,973,700
Exercised		(1,669	)	28.77
Outstanding at March 28, 2015		596,031		$	48.55		6.69		$	22,282,900
Exercisable at March 28, 2015		348,453		$	36.27		5.51		$	17,307,400

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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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