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Stock Compensation Plans (Details 1) - Stock Option & Stock Appreciation Rights [Member]	12 Months Ended
	Dec. 30, 2017 shares
Awards Outstanding	392,000
Remaining Life	2 years 4 months 10 days
Awards Exercisable	366,000
Exercise Price $18.00 - $40.00 [Member]
Awards Outstanding	21,000
Remaining Life	1 year 11 months 23 days
Awards Exercisable	21,000
Exercise Price $40.01 - $60.00 [Member]
Awards Outstanding	369,000
Remaining Life	2 years 4 months 20 days
Awards Exercisable	343,000
Exercise Price $60.01 - $80.00 [Member]
Awards Outstanding
Awards Exercisable
Exercise Price $80.01 - $100.00 [Member]
Awards Outstanding	2,000
Remaining Life	4 days
Awards Exercisable	2,000
Exercise Price $100.01 - $120.00 [Member]
Awards Outstanding
Awards Exercisable
Exercise Price $120.01 - $140.00 [Member]
Awards Outstanding
Awards Exercisable

X

- Definition

The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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

+ Details

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X

- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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

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X

- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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 (e)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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