SUPPLEMENTARY FINANCIAL INFORMATION (UNAUDITED) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended												12 Months Ended
	Mar. 30, 2014		Dec. 29, 2013		Sep. 29, 2013		Jun. 30, 2013	Mar. 31, 2013		Dec. 30, 2012	Sep. 30, 2012	Jul. 01, 2012	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 118,640	[1]	$ 124,628	[2]	$ 124,047	[3]	$ 117,464	$ 107,779	[4]	$ 114,277	$ 132,441	$ 129,955	$ 484,779	$ 484,452	$ 526,696
Gross profit	61,080	[1]	74,939	[2]	70,761	[3]	66,122	59,523	[4]	63,074	74,459	72,668	272,902	269,724	280,506
Net income from continuing operations	5,062	[1]	17,339	[2]	87,411	[3]	1,501	(5,469)	[4]	(106)	4,656	3,630	111,313	2,711	37,953
Net loss from discontinued operations	(5,033)	[1]	(10,391)	[2]	(3,760)	[3]	(3,765)	(5,158)	[4]	(5,051)	(4,729)	(7,945)	(22,949)	(22,883)	20,507
Net income (loss)	$ 29	[1]	$ 6,948	[2]	$ 83,651	[3]	$ (2,264)	$ (10,627)	[4]	$ (5,157)	$ (73)	$ (4,315)	$ 88,364	$ (20,172)	$ 58,460
Basic net income per share - continuing operations (in dollars per share)	$ 0.03	[1]	$ 0.11	[2]	$ 0.58	[3]	$ 0.01	$ (0.04)	[4]	$ 0.00	$ 0.03	$ 0.03	$ 0.74	$ 0.02	$ 0.26
Basic net income (loss) per share - discontinued operations (in dollars per share)	$ (0.03)	[1]	$ (0.06)	[2]	$ (0.02)	[3]	$ (0.03)	$ (0.03)	[4]	$ (0.04)	$ (0.03)	$ (0.06)	$ (0.15)	$ (0.16)	$ 0.15
Basic net income per share (in dollars per share)	$ 0.00	[1]	$ 0.05	[2]	$ 0.56	[3]	$ (0.02)	$ (0.07)	[4]	$ (0.04)	$ 0.00	$ (0.03)	$ 0.59	$ (0.14)	$ 0.41
Diluted net income per share - continuing operations (in dollars per share)	$ 0.03	[1]	$ 0.11	[2]	$ 0.57	[3]	$ 0.01	$ (0.04)	[4]	$ 0.00	$ 0.03	$ 0.03	$ 0.73	$ 0.02	$ 0.26
Diluted net income (loss) per share - discontinued operations (in dollars per share)	$ (0.03)	[1]	$ (0.07)	[2]	$ (0.03)	[3]	$ (0.03)	$ (0.03)	[4]	$ (0.04)	$ (0.03)	$ (0.06)	$ (0.15)	$ (0.16)	$ 0.14
Diluted net income per share (in dollars per share)	$ 0.00	[1]	$ 0.04	[2]	$ 0.54	[3]	$ (0.02)	$ (0.07)	[4]	$ (0.04)	$ 0.00	$ (0.03)	$ 0.58	$ (0.14)	$ 0.40

[1] In the fourth quarter of fiscal 2014, associated with the decision to discontinue production and sale of products using technology attained through the acquisitions of Mobius Microsystems in fiscal 2010 and IKOR in fiscal 2011, the Company recorded an additional $8.7 million in accelerated amortization of intangible assets which was charged to cost of revenues. In addition, the Company recorded a $2.4 million impairment of IPR&D to research and development expense, associated with the decision to discontinue further development required to complete the Mobius Microsystems acquired IPR&D.

[2] In the third quarter of fiscal 2014, the Company recorded a loss of $3.4 million in net loss from continuing operations related to the divestiture of certain assets of its Audio business to Stravelis, Inc.

[3] In the second quarter of fiscal 2014, the Company recorded a gain of $82.3 million in net income from continuing operations related to the divestiture of its PCI Express enterprise flash controller business to PMC-Sierra, Inc.

[4] In the fourth quarter of fiscal 2013, the Company recorded a gain of $8.0 million in net income from continuing operations related to the divestiture of its smart meter business.