DISCONTINUED OPERATIONS (Details) (USD $)	3 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended			6 Months Ended	3 Months Ended	0 Months Ended
	Sep. 28, 2012	Sep. 30, 2011	Sep. 28, 2012	Sep. 30, 2011	Mar. 31, 2012	Sep. 28, 2012 Divestitures	Sep. 30, 2011 Divestitures	Sep. 28, 2012 Divestitures	Sep. 30, 2011 Divestitures	Mar. 31, 2012 Divestitures	Sep. 28, 2012 Vista Point Technologies	Sep. 28, 2012 Divestiture Two	Oct. 15, 2012 Divestiture Two Expected
Discontinued Operations disclosures
Impairment of customer related intangible assets												$ 10,000,000
Total sale price											16,500,000		8,400,000
Loss on sale of business											4,700,000
Results from discontinued operations
Net sales						15,767,000	35,914,000	32,013,000	88,376,000
Cost of sales						14,415,000	33,046,000	34,305,000	86,063,000
Gross profit (loss)						1,352,000	2,868,000	(2,292,000)	2,313,000
Selling, general and administrative expenses						760,000	3,691,000	1,927,000	7,786,000
Intangibles amortization						9,969,000	3,081,000	11,000,000	4,263,000
Interest and other expense (income), net						520,000	48,000	3,948,000	(27,000)
Loss before income taxes						(9,897,000)	(3,952,000)	(19,167,000)	(9,709,000)
Provision for (benefit from) income taxes						9,000	117,000	(964,000)	(310,000)
Net loss of discontinued operations	(9,906,000)	(4,069,000)	(18,203,000)	(9,399,000)		(9,906,000)	(4,069,000)	(18,203,000)	(9,399,000)
Current and non-current assets and liabilities of discontinued operations
Accounts receivable, net						10,752,000		10,752,000		9,222,000
Inventories						7,970,000		7,970,000		11,002,000
Other current assets						1,096,000		1,096,000		1,418,000
Total current assets of discontinued operations	19,818,000		19,818,000		21,642,000	19,818,000		19,818,000		21,642,000
Property and equipment, net						6,652,000		6,652,000		30,377,000
Goodwill and other intangibles, net										11,000,000
Other assets						40,000		40,000		40,000
Total non-current assets of discontinued operations	6,692,000		6,692,000		41,417,000	6,692,000		6,692,000		41,417,000
Accounts payable						14,696,000		14,696,000		14,455,000
Other current liabilities						4,825,000		4,825,000		10,399,000
Total current liabilities of discontinued operations	$ 19,521,000		$ 19,521,000		$ 24,854,000	$ 19,521,000		$ 19,521,000		$ 24,854,000