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Equity Interest Investments (Details Textual) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended						4 Months Ended		5 Months Ended	12 Months Ended
	May 17, 2018	Dec. 29, 2018	Oct. 06, 2018	Mar. 24, 2018	Dec. 30, 2017	Oct. 07, 2017	Mar. 25, 2017	Jul. 14, 2018	Jul. 15, 2017	May 17, 2018	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Proceeds from Sale of Equity Method Investments	$ 33,700										$ 33,705	$ 0	$ 0
Equity Method Investment, Realized Gain (Loss) on Disposal	$ 13,000										13,020	0	0
Net Income (Loss) Attributable to Parent		$ 3,580	$ 3,575	$ 1,216	$ 7,459	$ 3,118	$ 1,388	$ 12,071	$ 2,096		20,442	$ 14,061	11,493
Stiga Sports AB [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%									50.00%
Stiga Sports AB [Member] \| Parent [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%				50.00%					50.00%		50.00%
Net Income (Loss) Attributable to Parent										$ 121		$ 1,600	1,700
Royalty Expense											$ 400	$ 400	$ 400