Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Mar. 23, 2017	Jul. 01, 2017	Jun. 25, 2016	Jul. 01, 2017	Jun. 25, 2016	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total assets		$ 139,997		$ 139,997		$ 181,480
Total liabilities		130,744		130,744		157,791
Operating expenses:
Net income (loss) from discontinued operations		75	$ (339)	(12,858)	$ (1,434)
Fresh Frozen Foods
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received	$ 23,700
Proceeds from sale of Fresh Frozen	$ 19,500
Total assets						32,200
Total liabilities						$ 2,000
Comparative financial results
Net revenues		58	11,467	8,735	24,141
Cost of revenues		8	10,902	8,602	24,040
Gross profit		50	565	133	101
Operating expenses:
Selling, general and administrative expenses		39	884	669	1,839
Operating income (loss)		11	(319)	(536)	(1,738)
Loss (gain) on sale of Fresh Frozen Foods		(64)		10,082
Interest expense, net			354	331	708
Income (loss) before income taxes		75	(673)	(10,949)	(2,446)
Income tax expenses (benefit)			(334)	1,909	(1,012)
Net income (loss) from discontinued operations		$ 75	$ (339)	$ (12,858)	$ (1,434)