Consolidated Statements of Net Income (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 29, 2014		Mar. 30, 2013
Net sales	$ 206,859	[1]	$ 170,918	[1]
Cost of sales	128,365		106,312
Gross profit	78,494		64,606
Selling, general and administrative expenses	34,171		29,202
Research and development expenses	7,574		5,715
Amortization of intangibles	3,159		1,572
	44,904		36,489
Operating income	33,590		28,117
Interest expense	1,216		376
Impairment and equity in net loss of unconsolidated affiliate		[2]	10,678	[2]
Foreign exchange (gain) loss	(252)		319
Other (income) expense, net	(1,186)		(1,228)
Income before income taxes	33,812		17,972
Income taxes	8,423		6,484
Net income	$ 25,389		$ 11,488
Net income per share (see note 8):
Basic (in Dollars per share)	$ 1.13		$ 0.52
Diluted (in Dollars per share)	$ 1.12		$ 0.51
Weighted average shares and equivalent shares outstanding:
Basic (in Shares)	22,492		22,095
Diluted (in Shares)	22,717		22,366
Cash dividends paid per common share (in Dollars per share)	$ 0.22		$ 0.20

[1] Sales by country represent sales to customer or distributor locations.

[2] During the first quarter of 2013, the company recorded approximately $10.7 million related to the impairment of its investment in Shocking Technologies. (See note 5).