Consolidated Statements Of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2014		Mar. 31, 2013
Consolidated Statements Of Comprehensive Income [Abstract]
Net sales	$ 86,554		$ 83,190
Cost of sales	70,834		66,981
Gross profit	15,720		16,209
Selling and general expenses	6,295		5,684
Intangibles amortization	2,443		167
Operating profit	6,982		10,358
Other income	164		208
Earnings before provision for income taxes	7,146		10,566
Income tax provision	2,456		3,712
Net earnings	4,690		6,854
Weighted average common shares outstanding:
Basic and diluted	6,921		6,903
Net earnings per share:
Basic and diluted	$ 0.68		$ 0.99
Other comprehensive income, net of tax:
Unrealized gain on available-for-sale securities	4		8
Comprehensive income	$ 4,694		$ 6,862
Cash dividends declared and paid per common share	$ 5.05	[1]	$ 0.00	[1]

[1] An accelerated payment was made in late December 2012 of the annual 2013 dividend. The acceleration was occasioned by the uncertainty over the federal income tax rates that would be in effect for 2013. In contrast, the annual 2014 dividend payment was made during the first quarter of 2014.