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Equity Interest Investments (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 4 Months Ended 12 Months Ended
Dec. 30, 2017
Oct. 07, 2017
Mar. 25, 2017
Dec. 31, 2016
Oct. 01, 2016
Jul. 09, 2016
Mar. 19, 2016
Jul. 15, 2017
Dec. 30, 2017
Dec. 31, 2016
Dec. 26, 2015
Schedule of Equity Method Investments [Line Items]                      
Net Income (Loss) Attributable To Parent $ 7,459 $ 3,118 $ 1,388 $ 3,463 $ 4,243 $ 2,090 $ 1,697 $ 2,096 $ 14,061 $ 11,493 $ 11,606
Stiga Sports AB [Member]                      
Schedule of Equity Method Investments [Line Items]                      
Equity Method Investment, Ownership Percentage 50.00%               50.00%    
Amortization Of Goodwill                 $ 10,900 9,800  
Goodwill, Translation Adjustments                 15,200 13,700  
Cumulative goodwill adjustments, tax effect                 4,300 3,900  
Adjustments For Net Income Impact                 $ 0 0 100
Stiga Sports AB [Member] | Parent [Member]                      
Schedule of Equity Method Investments [Line Items]                      
Equity Method Investment, Ownership Percentage 50.00%               50.00%    
Net Income (Loss) Attributable To Parent                 $ 1,600 1,700 3,000
Royalty Expense                 $ 400 $ 400 $ 400