Consolidated Condensed Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jun. 25, 2011
Cash flows from operating activities:
Net income	$ 6,927	$ 9,178
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,958	2,262
Stock compensation expense	4,172	2,442
Deferred income taxes	3,348	4,981
Loss On Retirement Or Writeoff Of Long Lived Assets	11	2
Other non-cash charges	1,139	0
Net change in operating assets and liabilities:
Accounts receivable, net	(5,109)	(2,869)
Inventories	(40,875)	(6,354)
Other assets	(231)	(2,794)
Accounts payable and other accrued liabilities	26,986	675
Deferred income	(70)	2,901
Income taxes payable	157	193
Net cash (used in) provided by operating activities	(587)	10,617
Cash flows from investing activities:
Proceeds from sale of available for sale marketable securities	40,931	97,951
Purchases of available for sale marketable securities	(4,497)	(34,066)
Purchases of property, equipment and software	(17,326)	(8,162)
Investments in technology	(1,103)	(6,095)
Decrease in restricted investments	0	31
(Increase) decrease in deposits and other assets	(145)	308
Net cash provided by investing activities	17,860	49,967
Cash flows from financing activities:
Repurchase and retirement of common stock	0	(56,493)
Issuance of common stock, net of issuance costs	1,042	360
Net cash provided by (used in) financing activities	1,042	(56,133)
Net increase in cash and cash equivalents	18,315	4,451
Cash and cash equivalents at beginning of period	65,997	37,039
Cash and cash equivalents at end of period	$ 84,312	$ 41,490