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Major Customers, Suppliers and Products (Schedule Of Customer Concentration of Risk) (Details) - customer	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Sales Revenue, Resale of Products
Concentration Risk
Concentration Risk, Percentage	77.00%	75.00%
Customer Concentration Risk | Sales Revenue, Product Line | Customer A
Concentration Risk
Concentration Risk, Percentage		18.00%
Customer Concentration Risk | Accounts Receivable
Concentration Risk
Concentration Risk, Number of Customers	1	2
Customer Concentration Risk | Accounts Receivable | Customer A
Concentration Risk
Concentration Risk, Percentage	25.00%	22.00%
Customer Concentration Risk | Accounts Receivable | Customer C
Concentration Risk
Concentration Risk, Percentage		15.00%

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- Definition

Concentration Risk, Number of Customers

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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-Publisher FASB
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