Business Segments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 25, 2016 USD ($)	Jun. 27, 2015 USD ($)	Jun. 25, 2016 segment	Jun. 25, 2016 item	Jun. 25, 2016	Jun. 25, 2016 USD ($)	Jun. 27, 2015 USD ($)
Business segments revenue by products
Number of reportable segments			2	2
Net revenues from external customers	$ 69,263	$ 66,422				$ 139,118	$ 144,029
Depreciation and amortization included in segment gross profit	1,137	1,170				2,229	2,332
Segment gross profit	10,267	8,025				19,084	4,325
Reconciliation of reportable segment gross profit to consolidated income before income tax provision
Segment gross profit	10,267	8,025				19,084	4,325
Operating expenses	(8,493)	(10,217)				(16,602)	(28,646)
Impairment of intangible asset							9,277
Interest expense, net	(2,320)	(928)				(4,676)	(1,658)
Loss before income taxes expense	(546)	(3,120)				(2,194)	(25,979)
Frozen Products
Business segments revenue by products
Net revenues from external customers	$ 41,779	$ 34,900				86,749	$ 86,249
Percentage of net revenue	60.30%	52.60%			62.40%		59.90%
Depreciation and amortization included in segment gross profit	$ 603	$ 569				1,188	$ 1,125
Segment gross profit	4,848	2,592				9,169	(4,897)
Reconciliation of reportable segment gross profit to consolidated income before income tax provision
Segment gross profit	4,848	2,592				9,169	(4,897)
Snack Products
Business segments revenue by products
Net revenues from external customers	$ 27,484	$ 31,522				52,369	$ 57,780
Percentage of net revenue	39.70%	47.40%			37.60%		40.10%
Depreciation and amortization included in segment gross profit	$ 534	$ 601				1,041	$ 1,207
Segment gross profit	5,419	5,433				9,915	9,222
Reconciliation of reportable segment gross profit to consolidated income before income tax provision
Segment gross profit	5,419	5,433				9,915	9,222
Berries Beverage Blends and Desserts Product | Frozen Products
Business segments revenue by products
Net revenues from external customers	$ 30,312	$ 29,038				62,608	$ 64,376
Percentage of net revenue	43.70%	43.80%			45.00%		44.70%
Vegetables Product | Frozen Products
Business segments revenue by products
Net revenues from external customers	$ 11,467	$ 5,862				24,141	$ 21,873
Percentage of net revenue	16.60%	8.80%			17.40%		15.20%
Indulgent Specialty Snacks Product | Snack Products
Business segments revenue by products
Net revenues from external customers	$ 9,872	$ 12,107				19,799	$ 23,657
Percentage of net revenue	14.30%	18.20%			14.20%		16.40%
Healthy And Natural Food Product
Business segments revenue by products
Net revenues from external customers	$ 59,400	$ 54,300				119,300	$ 120,300
Healthy Natural Snacks Product | Snack Products
Business segments revenue by products
Net revenues from external customers	$ 17,612	$ 19,415				32,570	$ 34,123
Percentage of net revenue	25.40%	29.20%			23.40%		23.70%
Consolidated
Business segments revenue by products
Net revenues from external customers	$ 69,263	$ 66,422				$ 139,118	$ 144,029
Percentage of net revenue	100.00%	100.00%			100.00%		100.00%