Commitments and Contingencies (Litigation) (Details)	6 Months Ended	12 Months Ended			0 Months Ended		1 Months Ended					12 Months Ended	1 Months Ended		6 Months Ended	12 Months Ended
	Jan. 01, 2012 USD ($)	Dec. 29, 2013 USD ($)	Dec. 30, 2012 USD ($)	Jul. 03, 2011 USD ($)	Aug. 02, 2012 Italy Tax Authority [Member] USD ($)	Aug. 02, 2012 Italy Tax Authority [Member] EUR (€)	Nov. 30, 2010 Italy Tax Authority [Member] USD ($)	Nov. 30, 2010 Italy Tax Authority [Member] EUR (€)	Nov. 30, 2007 Antonio Canova [Member] USD ($)	Nov. 30, 2007 Antonio Canova [Member] EUR (€)	Dec. 29, 2013 Connecticut Department of Environmental Protection [Member] USD ($)	Dec. 29, 2013 Ole K. Nilssen v. Magnetek, Inc. [Member] USD ($)	Jan. 31, 2012 Kirkland and Ellis, LLP v. Magnetek, Inc. [Member] USD ($)	Aug. 31, 2008 Kirkland and Ellis, LLP v. Magnetek, Inc. [Member] USD ($)	Jan. 01, 2012 Universal Lighting Technologies, Inc. v. Ole K. Nilssen [Member] USD ($)	Dec. 29, 2013 Universal Lighting Technologies, Inc. v. Ole K. Nilssen [Member] USD ($)
Loss Contingencies [Line Items]
Litigation settlement, amount												$ 23,400,000
Damages paid												18,750,000				750,000
Gain in discontinued operations, related to litigation settlement	0	0	4,962,000	0											750,000
Damages awarded													5,000,000
Asserted claims for damages									4,800,000	3,500,000				18,750,000
Alleged taxes owed including penalties and interest					3,900,000	2,800,000	3,600,000	2,600,000
Estimate of possible loss					13,000,000	9,500,000	2,600,000	1,900,000
Potential penalties rate, including interest							120.00%	120.00%
Liabilitiy recorded											500,000
Outstanding letters of credit		$ 800,000