Consolidated Condensed Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Consolidated Condensed Statements of Operations [Abstract]
Sales	$ 73,967	$ 65,138
Cost of Products Sold	53,748	47,018
Gross Profit	20,219	18,120
Selling, General and Administrative Expenses	9,157	8,855
Income from Operations	11,062	9,265
Interest Expense, Net of Interest Income	218	263
Income Before Income Taxes	10,844	9,002
Provision for Income Taxes	2,280	2,907
Net Income	$ 8,564	$ 6,095
Earnings per share:
Basic	$ 0.59	$ 0.43
Diluted	$ 0.56	$ 0.40