Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Income Statement [Abstract]
Net Revenues	$ 181,101	$ 159,842	$ 534,162	$ 465,124
Cost of Sales	142,774	128,726	422,076	375,225
Gross Profit	38,327	31,116	112,086	89,899
Selling, General and Administrative Expenses	23,724	20,956	71,031	61,476
Restructuring Charges	0	3,373	0	10,784
Operating Income	14,603	6,787	41,055	17,639
Interest Expense	(4,363)	(2,497)	(13,140)	(9,159)
Income Before Taxes	10,240	4,290	27,915	8,480
Income Tax Expense	1,937	119	4,325	118
Net Income	$ 8,303	$ 4,171	$ 23,590	$ 8,362
Earnings Per Share
Basic earnings per share (in dollars per share)	$ 0.72	$ 0.37	$ 2.05	$ 0.73
Diluted earnings per share (in dollars per share)	$ 0.70	$ 0.36	$ 2.00	$ 0.72
Weighted-Average Number of Common Shares Outstanding
Basic (in shares)	11,551	11,404	11,501	11,382
Diluted (in shares)	11,794	11,683	11,784	11,639