Note 11 - Operating Segment and Geographic Information (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		27.50%
Assets, Total	$ 251,798	$ 220,705	$ 148,779
Number of Major Customers		1
Number of Employees Covered Under Collective Bargaining Agreement	28
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Amazon.com, Inc. [Member]
Concentration Risk, Percentage	21.00%	23.00%	21.00%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Dick's Sporting Goods [Member]
Concentration Risk, Percentage	11.00%	13.00%	13.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Amazon.com, Inc. [Member]
Concentration Risk, Percentage	24.00%	26.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Dick's Sporting Goods [Member]
Concentration Risk, Percentage	10.00%	11.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Academy Sports and Outdoors, Inc. [Member]
Concentration Risk, Percentage	17.00%	14.00%
MEXICO
Assets, Total	$ 15,800	$ 16,000

The number of employees covered under collective bargaining agreement.

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Represents the number of major customers accounting for 10% or more of the specified concentration risk benchmark, which includes, but not limited to, sales revenue, accounts receivable, etc.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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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.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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