Venture Capital Investments and Marketable Securities (Tables)

6 Months Ended

Jun. 25, 2016

Marketable Securities and Equity-Method Affiliates [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The following is a summary of the Company's marketable securities, all of which are classified as available-for-sale:

	June 25, 2016
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(in thousands)
Mutual fund	$	4,650	$	—	$	(23	)	$	4,627
Total	$	4,650	$	—	$	(23	)	$	4,627

	December 26, 2015
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(in thousands)
Mutual fund	$	4,650	$	—	$	(141	)	$	4,509
Total	$	4,650	$	—	$	(141	)	$	4,509