DISCONTINUED OPERATIONS (Details) (USD $)	3 Months Ended
	Jun. 29, 2012	Jul. 01, 2011	Mar. 31, 2012
Results from discontinued operations
Net loss of discontinued operations	$ (8,981,000)	$ (3,432,000)
Current and non-current assets and liabilities of discontinued operations
Total current assets of discontinued operations			5,086,000
Total non-current assets of discontinued operations			22,671,000
Total current liabilities of discontinued operations			8,244,000
Vista Point Technologies
Discontinued Operations disclosures
Total proceeds received from the sale of business	16,500,000
Loss on sale of business	(4,700,000)
Results from discontinued operations
Net sales	2,697,000	41,547,000
Cost of sales	7,317,000	42,103,000
Gross loss	(4,620,000)	(556,000)
Selling, general and administrative expenses	434,000	3,157,000
Loss on sale of business and other expenses (income), net	4,915,000	(39,000)
Loss before income taxes	(9,969,000)	(3,674,000)
Benefit from income taxes	(988,000)	(242,000)
Net loss of discontinued operations	(8,981,000)	(3,432,000)
Current and non-current assets and liabilities of discontinued operations
Account receivable, net			892,000
Inventories			3,723,000
Other current assets			471,000
Total current assets of discontinued operations			5,086,000
Property and equipment, net			22,671,000
Total non-current assets of discontinued operations			22,671,000
Accounts payable			3,593,000
Other current liabilities			4,651,000
Total current liabilities of discontinued operations			$ 8,244,000