Facility Consolidation and Severance Expenses, Net (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Apr. 01, 2017
Restructuring Cost and Reserve [Line Items]
Accrued Balance		$ 505	$ 514
Expenses To Date	[1]	216	0
Cash Payments		334	81
Accrued Balance		387	433
Total Costs Incurred To Date		9,099
Expected Cost Remaining		10,168
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	63
Accrued Balance		0	203
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]	0	0
Cash Payments		18	18
Accrued Balance		153	$ 230
Total Costs Incurred To Date		807
Expected Cost Remaining		807
2017 Profit Improvement Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance		334
Expenses To Date	[1]	216
Cash Payments		316
Accrued Balance		234
Total Costs Incurred To Date		852
Expected Cost Remaining		$ 1,921

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