Business Segments - Reportable Segments Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2017 USD ($)	Jun. 25, 2016 USD ($)	Jul. 01, 2017 segment	Jul. 01, 2017 item	Jul. 01, 2017	Jul. 01, 2017 USD ($)	Jun. 25, 2016 USD ($)
Business segments revenue by products
Number of reportable segments			2	2
Net revenues from external customers	$ 51,356	$ 57,797				$ 100,974	$ 114,977
Percentage of net revenue	100.00%	100.00%			100.00%		100.00%
Depreciation and amortization included in segment gross profit	$ 801	$ 775				1,606	$ 1,563
Segment gross profit	10,112	9,703				18,626	18,983
Reconciliation of reportable segment gross profit to consolidated income before income tax provision
Segment gross profit	10,112	9,703				18,626	18,983
Operating expenses	8,668	7,609				15,924	14,763
Operating expenses	8,668	7,609				15,924	14,763
Interest expense	(2,425)	(1,967)				(4,787)	(3,968)
Income (loss) from continuing operations before income tax expense	(981)	127				(2,085)	252
Frozen Products
Business segments revenue by products
Net revenues from external customers	$ 20,692	$ 30,312				44,154	$ 62,608
Percentage of net revenue	40.30%	52.40%			43.80%		54.50%
Depreciation and amortization included in segment gross profit	$ 225	$ 241				451	$ 522
Segment gross profit	3,607	4,283				8,348	9,068
Reconciliation of reportable segment gross profit to consolidated income before income tax provision
Segment gross profit	3,607	4,283				8,348	9,068
Snack Products
Business segments revenue by products
Net revenues from external customers	$ 30,664	$ 27,485				56,820	$ 52,369
Percentage of net revenue	59.70%	47.60%			56.20%		45.50%
Depreciation and amortization included in segment gross profit	$ 576	$ 534				1,155	$ 1,041
Segment gross profit	6,505	5,420				10,278	9,915
Reconciliation of reportable segment gross profit to consolidated income before income tax provision
Segment gross profit	6,505	5,420				10,278	9,915
Berries, Blends, Beverage and Desserts Product | Frozen Products
Business segments revenue by products
Net revenues from external customers	$ 20,475	$ 30,312				43,553	$ 62,608
Percentage of net revenue	39.90%	52.40%			43.20%		54.50%
Vegetables | Frozen Products
Business segments revenue by products
Net revenues from external customers						601
Percentage of net revenue					0.60%
Riced Vegetables | Frozen Products
Business segments revenue by products
Net revenues from external customers	$ 217
Percentage of net revenue	0.40%
Indulgent Specialty Snacks Product | Snack Products
Business segments revenue by products
Net revenues from external customers	$ 10,106	$ 9,873				19,033	$ 19,799
Percentage of net revenue	19.70%	17.10%			18.80%		17.20%
Healthy And Natural Food Product
Business segments revenue by products
Net revenues from external customers	$ 41,200	$ 47,900				81,900	$ 95,200
Healthy Natural Snacks Product
Business segments revenue by products
Net revenues from external customers						19,000	19,800
Healthy Natural Snacks Product | Snack Products
Business segments revenue by products
Net revenues from external customers	$ 20,558	$ 17,612				$ 37,787	$ 32,570
Percentage of net revenue	40.00%	30.50%			37.40%		28.30%