Goodwill and Other Intangible Assets - Summary of Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		8 Months Ended
	Sep. 10, 2016	Sep. 12, 2015	Sep. 10, 2016	Sep. 12, 2015	Jan. 02, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 33,559		$ 33,559		$ 32,710
Accumulated Amortization	12,773		12,773		10,508
Net Carrying Amount	20,786		20,786		22,202
Amortization of intangible assets	700	$ 700	2,300	$ 1,900
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2016	1,000		1,000
2017	3,200		3,200
2018	2,900		2,900
2019	2,600		2,600
2020	2,500		2,500
Customer & supplier relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	22,930		22,930		22,202
Accumulated Amortization	5,927		5,927		4,369
Net Carrying Amount	17,003		$ 17,003		17,833
Useful life			11 years
Software [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,573		$ 4,573		4,455
Accumulated Amortization	3,557		3,557		3,382
Net Carrying Amount	1,016		$ 1,016		1,073
Useful life			9 years
Non-compete agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,939		$ 2,939		2,930
Accumulated Amortization	2,043		2,043		1,713
Net Carrying Amount	896		$ 896		1,217
Useful life			5 years
Patents, formulae, and licenses [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,769		$ 1,769		1,769
Accumulated Amortization	556		556		510
Net Carrying Amount	1,213		$ 1,213		1,259
Useful life			15 years
Other intangible assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,348		$ 1,348		1,354
Accumulated Amortization	690		690		534
Net Carrying Amount	$ 658		$ 658		$ 820
Useful life			6 years