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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Operating Segment and Geographic Information (Details Textual)	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Amazon.com, Inc [Member] \| Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Entity-Wide Revenue, Major Customer, Percentage	19.00%	18.00%	13.00%
Amazon.com, Inc [Member] \| Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Percentage Of Accounts Receivables	24.00%	25.00%
Dick's Sporting Goods [Member] \| Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Entity-Wide Revenue, Major Customer, Percentage	13.00%	17.00%	18.00%
Dick's Sporting Goods [Member] \| Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Percentage Of Accounts Receivables	14.00%	22.00%
Consolidated Total Revenues [Member]
Segment Reporting Information [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	27.50%