Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Dec. 27, 2015	Dec. 28, 2014
Integrated Memory Logic Limited [Member]
Cash flows from investing activities:
Acquisition of Integrated Memory Logic Limited, net of cash acquired		$ (72,658)
Net loss	$ (13,844)	(42,093)
Depreciation and amortization	14,595	13,325
Stock-based compensation expense	4,431	10,949
Restructuring charges and exit costs	905	6,732
Impairment of Intangible Assets (Excluding Goodwill)	$ 1,807	12,284
Release of deferred tax valuation allowance		828
Net change in fair value of contingent consideration		(4,343)
Accounts receivable and accounts receivable, related party	$ (2,511)	(1,125)
Inventories	1,684	(3,506)
Other current and non-current assets	8,132	(1,087)
Accounts payable	(909)	(2,945)
Accrued compensation and related benefits	(1,442)	(231)
Other current and non-current liabilities	(8,020)	(5,380)
Deferred income and allowance to distributors including related party	(3,724)	581
Net cash provided by (used in) operating activities	1,104	(16,011)
Purchases of property, plant and equipment and intellectual property, net	$ (954)	(2,447)
Purchases of short-term marketable securities		(9,296)
Proceeds from maturities of short-term marketable securities		3,997
Proceeds from sales of short-term marketable securities		158,412
Net cash provided by (used in) investing activities	$ (954)	78,008
Cash flows from financing activities:
Proceeds from issuance of common stock	2,351	4,530
Purchase of stock for withholding taxes on vested restricted stock	(1,562)	(629)
Payments of lease financing obligations	(2,294)	$ (1,006)
Cash settlement of equity award	$ (429)
Proceeds from issuance of debt		$ 91,000
Repayment of debt		(91,000)
Capital contribution from Integrated Memory Logic Limited non-controlling interest		(18,883)
Repurchase of common stock		(7,999)
Net cash used in financing activities	$ (1,934)	(23,989)
Net increase (decrease) in cash and cash equivalents	(1,784)	38,008
Cash and cash equivalents at the beginning of period	55,233	14,614
Cash and cash equivalents at the end of period	$ 53,449	52,622
Supplemental disclosure of cash flow and non-cash information1
Engineering design tools acquired under capital lease		$ 2,924
Increase in equity associated with release of liability for Cadeka restricted stock units	$ 1,875