Acquired Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

The carrying basis and accumulated amortization of recognized intangible assets are summarized in the following table:

	2016				2015
	Gross				Gross
	Carrying		Accumulated		Carrying		Accumulated
In Thousands	Amount		Amortization		Amount		Amortization
Patents	$	24,515	$	23,068	$	24,220	$	22,061
Non-compete agreements		2,749		2,377		2,749		2,192
Customer list		13,703		2,247		9,073		1,112
Trademarks		7,703		121		6,313		122
	$	48,670	$	27,813	$	42,355	$	25,487

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Estimated future amortization expense is summarized in the following table:

In Thousands	2017		2018		2019		2020		2021		Thereafter
Sporting Goods	$	1,551	$	1,349	$	1,249	$	1,205	$	1,158	$	6,763

Schedule of Goodwill [Table Text Block]

All goodwill is allocated to the operating segment of the business. The changes in the carrying amount of goodwill were:

In Thousands	Sporting Goods
Balance at December 27, 2014	$	14,875
Acquisitions		5,172
Balance at December 26, 2015	$	20,047
Acquisition		1,409
Balance at December 31, 2016	$	21,456