Acquisitions (Details Textual) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 21, 2016	Dec. 30, 2017	Dec. 26, 2015	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill		$ 21,548		$ 21,456
Business Combination, Consideration Transferred, Total		$ 1,500
Triumph Sports USA [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	$ 1,400
Goodwill	1,400
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	1,400
Business Combination, Consideration Transferred, Total	10,000
Payments to Acquire Businesses, Gross	9,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability	500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets	100
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total	$ 6,300
Onix Sports & Goalsetter Systems, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred, Total			$ 10,300
Working Capital Adjustment			$ 600