Discontinued Operations (Details textual) (USD $)	0 Months Ended	3 Months Ended
	May 30, 2014	Jun. 29, 2014	Jun. 30, 2013	May 30, 2014	Mar. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures		$ 15,300,000	$ 0
High-Speed Converter Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Unpaid contingent consideration					2,100,000
Payment of contingent consideration		1,600,000
Contingent consideration released		500,000
Proceeds from divestitures	18,000,000	18,000,000
Cash held in escrow related to discontinued operations				2,700,000
Gain on divestiture		16,840,000	0
Long-lived assets held for sale				8,500,000
Fixed assets held for sale				2,900,000	2,900,000
Intangible assets held for sale				5,600,000	6,600,000
Impairment charge		$ 8,500,000