Condensed Consolidated Income Statements (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Income Statement [Abstract]
Net Revenues	$ 188,164	$ 181,288	$ 554,433	$ 548,675
Cost of Sales	154,770	148,984	448,526	446,202
Gross Profit	33,394	32,304	105,907	102,473
Selling, General and Administrative Expenses	23,050	20,351	65,005	65,175
Operating Income	10,344	11,953	40,902	37,298
Interest Expense	(6,975)	(7,403)	(21,094)	(22,668)
Other Income	1,600	0	1,600	0
Income Before Taxes	4,969	4,550	21,408	14,630
Income Tax Expense (Benefit)	2,347	(86)	7,685	783
Net Income	$ 2,622	$ 4,636	$ 13,723	$ 13,847
Earnings Per Share
Basic earnings per share (in dollars per share)	$ 0.24	$ 0.43	$ 1.26	$ 1.30
Diluted earnings per share (in dollars per share)	$ 0.24	$ 0.42	$ 1.23	$ 1.28
Weighted-Average Number of Common Shares Outstanding
Basic (in shares)	10,921	10,722	10,902	10,657
Diluted (in shares)	11,150	10,917	11,202	10,785