Facility Consolidation and Severance Expenses, Net (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2018	Jul. 01, 2017
Restructuring Cost and Reserve [Line Items]
Accrued Balance		$ 505	$ 514
Expenses To Date	[1]	406	0
Cash Payments		693	242
Accrued Balance		218	272
Total Costs Incurred To Date		9,289
Expected Cost Remaining		10,154
2014 Warehousing Distribution and Manufacturing Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance		0	266
Expenses To Date	[1]	0	0
Cash Payments		0	204
Accrued Balance		0	62
Total Costs Incurred To Date		7,440
Expected Cost Remaining		7,440
2015 Corporate Office Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance		171	248
Expenses To Date	[1]	4	0
Cash Payments		40	38
Accrued Balance		135	$ 210
Total Costs Incurred To Date		811
Expected Cost Remaining		811
2017 Profit Improvement Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance		334
Expenses To Date	[1]	402
Cash Payments		653
Accrued Balance		83
Total Costs Incurred To Date		1,038
Expected Cost Remaining		$ 1,903

[1] Costs incurred under these plans are classified as "facility consolidation and severance expenses, net" in the Company's Consolidated Condensed Statements of Operations.