Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net income (loss)	$ (12,240)	$ 806
Reconciliation of net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	3,309	2,850
Stock-based compensation expense	3,127	1,087
Release of deferred tax valuation allowance	828
Net change in fair value of contingent consideration	(431)
Changes in operating assets and liabilities:
Accounts receivable and accounts receivable, related party	(692)	(3,026)
Inventories	944	39
Other current and non-current assets	(1,460)	184
Accounts payable	(3,824)	3,101
Accrued compensation and related benefits	(538)	141
Other current and non-current liabilities	255	(4,647)
Deferred income and allowance on sales to distributors and related party distributor	2,585	448
Net cash provided by (used in) operating activities	(8,137)	983
Cash flows from investing activities:
Purchases of property, plant and equipment and intellectual property, net	(551)	(349)
Purchases of short-term marketable securities	(9,296)	(63,332)
Proceeds from maturities of short-term marketable securities	3,997	10,457
Proceeds from sales of short-term marketable securities	158,412	73,666
Acquisition of Integrated Memory Logic, net of cash received	(72,659)
Restricted cash	(26,000)
Other disposal (investment) activities		125
Net cash provided by investing activities	53,903	20,567
Cash flows from financing activities:
Proceeds from issuance of common stock	1,380	1,497
Purchase of stock for withholding taxes on vested restricted stock	(569)	(977)
Issuance of debt	91,000
Repayment of debt	(26,000)
Repurchase of common stock	(3,000)
Payments of lease financing obligations	(30)	(330)
Net cash provided by financing activities	62,781	190
Net increase in cash and cash equivalents	108,547	21,740
Cash and cash equivalents at the beginning of period	14,614	14,718
Cash and cash equivalents at the end of period	123,161	36,458
Supplemental disclosure of cash flow and non-cash information
Cash paid for income taxes	21	62
Cash paid for interest	486	37
Release of restricted stock upon vesting	408
Hifn and Others [Member]
Supplemental disclosure of cash flow and non-cash information
Issuance of common stock in connection with Hifn acquisition & others		$ 10