Unaudited Consolidated Condensed Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 27, 2014	Apr. 28, 2013
Net sales	$ 132,859	$ 162,407
Cost of sales	54,775	65,120
Gross profit	78,084	97,287
Operating costs and expenses:
Selling, general and administrative	31,696	34,794
Product development and engineering	27,813	34,559
Intangible amortization and impairments	6,425	7,856
Restructuring charge	1,001	0
Total operating costs and expenses	66,935	77,209
Operating income	11,149	20,078
Interest and amortization of debt discount and expense	(1,387)	(4,060)
Non-operating expense, net	(278)	(807)
Income before taxes	9,484	15,211
Provision for taxes	1,617	434
Net income	$ 7,867	$ 14,777
Earnings per share:
Basic (in dollars per share)	$ 0.12	$ 0.22
Diluted (in dollars per share)	$ 0.12	$ 0.22
Weighted average number of shares used in computing earnings per share:
Basic (in shares)	67,300	66,956
Diluted (in shares)	67,970	68,579