Contingencies (Details Textual) (USD $)	6 Months Ended		3 Months Ended	6 Months Ended			3 Months Ended				6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended	12 Months Ended	3 Months Ended
	Jul. 01, 2012	Jul. 01, 2012 Scotland EMS Manufacturing Facility [Member]	Jul. 01, 2012 Scotland EMS Manufacturing Facility [Member] Business Interruption Caused Due to Flood [Member]	Jul. 01, 2012 Scotland EMS Manufacturing Facility [Member] Business Interruption Caused Due to Flood [Member]	Jul. 01, 2012 Scotland EMS Manufacturing Facility [Member] Damage from fire [Member]	Jul. 03, 2011 Scotland EMS Manufacturing Facility [Member] Damage from fire [Member]	Jul. 03, 2011 Scotland EMS Manufacturing Facility [Member] Damage from fire [Member] Inventory [Member]	Jul. 03, 2011 Scotland EMS Manufacturing Facility [Member] Damage from fire [Member] Machinery and equipment [Member]	Dec. 31, 2011 Thailand EMS Manufacturing Facility [Member]	Jul. 01, 2012 Thailand EMS Manufacturing Facility [Member] Business Interruption Caused Due to Flood [Member]	Jul. 01, 2012 Thailand EMS Manufacturing Facility [Member] Business Interruption Caused Due to Flood [Member]	Jul. 01, 2012 Thailand EMS Manufacturing Facility [Member] Property Damages Caused Due to Flood [Member]	Jul. 01, 2012 Thailand EMS Manufacturing Facility [Member] Property Damages Caused Due to Flood [Member]	Jul. 01, 2012 Thailand EMS Manufacturing Facility [Member] Damage from flood [Member]	Dec. 31, 2011 Thailand EMS Manufacturing Facility [Member] Damage from flood [Member]	Jul. 01, 2012 Thailand EMS Manufacturing Facility [Member] Damage from flood [Member]	Dec. 31, 2011 Thailand EMS Manufacturing Facility [Member] Damage from flood [Member]	Dec. 31, 2011 Thailand EMS Manufacturing Facility [Member] Damage from flood [Member] Inventory [Member]	Dec. 31, 2011 Thailand EMS Manufacturing Facility [Member] Damage from flood [Member] Machinery and equipment [Member]
Contingencies (Textual) [Abstract]
Net book value of assets damaged							$ 1,600,000	$ 200,000										$ 800,000	$ 500,000
Value of insurance converge deducted						100,000
Value of insurance converge deducted									250,000
Recovery for business interruption			200,000
Reimbursement of insurance claim					1,000,000					7,200,000		300,000		7,500,000
Proceeds from insurance claim	13,280,000										11,600,000		3,100,000			14,700,000
Recorded reimbursement for business interruption				900,000							10,200,000		1,800,000
Expense related to Business interruption insurance recovery		100,000
Fixed costs incurred at facility															2,500,000
Insurance receivable recorded earlier, adjusted against proceeds									2,400,000
Global insurance policy covered costs									25,000,000
Insurance receivable relieved																	$ 2,400,000