Acquisition (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended			3 Months Ended	6 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013	Dec. 28, 2013	Jun. 28, 2014 Atlas Carpet Mills [Member]	Jun. 28, 2014 Atlas Carpet Mills [Member]	Mar. 19, 2014 Atlas Carpet Mills [Member]	Jun. 28, 2014 Atlas Carpet Mills [Member] Estimate of Fair Value Measurement [Member]	Mar. 19, 2014 Atlas Carpet Mills [Member] Estimate of Fair Value Measurement [Member]
Business Acquisition [Line Items]
Transaction costs of acquisition								$ 569
Cash paid							16,543
Accrued consideration for working capital adjustment in acquisition			(1,274)	0			1,274
Accrued consideration for holdbacks							923
Total purchase price consideration							18,740		18,869
Cash								2,466		2,466
Receivables								4,304		4,304
Inventories								10,981		11,511
Other current assets								797		956
Assets held for sale	5,322		5,322		0			5,152		3,250
Property, plant and equipment								7,016		6,929
Finite intangible assets								3,300		3,300
Other assets								859		623
Accounts payable								(2,286)		(2,286)
Accrued expenses								(2,883)		(3,036)
Capital lease obligation								(404)		(404)
Fair value of net assets acquired								29,302		27,613
Gain on purchase of business	0	0	(10,562)	0			(10,562)		(8,744)
After tax gain on purchase of business							6,548
Revenue of Atlas since acquisition date						12,182	13,848
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Inventories							(530)
Other current assets							(159)
Assets held for sale							1,902
Property, plant, and equipment							87
Other assets							236
Accrued expenses							153
Fair value of net assets acquired							1,689
Consideration transferred							(129)
Change in bargain gain, pretax							(1,818)
Change in bargain gain, after-tax							$ 1,127