Consolidated Condensed Statements Of Operations (USD $) In Thousands, except Per Share data	3 Months Ended
	Jun. 25, 2011	Jun. 26, 2010
Consolidated Condensed Statements of Operations
Net sales	$ 92,242	$ 81,915
Cost of sales	44,533	35,180
Gross margin	47,709	46,735
Operating expenses:
Research and development	18,767	15,092
Selling, general and administrative	14,606	14,011
Provision for litigation expenses and settlements		135
Total operating expenses	33,373	29,238
Income from operations	14,336	17,497
Interest income, net	154	228
Other income (expense), net	(17)	32
Income before income taxes	14,473	17,757
Provision for income taxes	5,295	155
Net income	$ 9,178	$ 17,602
Basic income per share:	$ 0.14	$ 0.26
Diluted income per share:	$ 0.13	$ 0.25
Basic weighted average common shares outstanding:	67,099	66,639
Diluted weighted average common shares outstanding:	70,445	70,755