Related Parties (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Lite On Semiconductor [Member]
Sales and Purchase Retated Parties [Line Items]
Related Party ownership of common stock	18.00%		18.00%
Percentage of net sales to related party			0.00%	0.00%
Sales from product from related party			2.00%	3.00%
Revenue from related parties	$ 296,000	$ 274,000	$ 399,000	$ 321,000
Purchases from related parties	9,650,000	9,001,000	17,159,000	16,419,000
Related party receivable or payable [Abstract]
Accounts receivable	293,000		293,000		204,000
Accounts payable	7,531,000		7,531,000		5,308,000
Related Party Transaction, Description of Transaction			LSC owned approximately 18% of the Company’s outstanding Common Stock as of June 30, 2013.
Keylink [Member]
Sales and Purchase Retated Parties [Line Items]
Percentage of net sales to related party			1.00%	3.00%
Sales from product from related party			0.00%	1.00%
Revenue from related parties	1,561,000	4,971,000	5,209,000	9,443,000
Purchases from related parties	2,138,000	2,323,000	3,666,000	4,127,000
Related Party Transaction Consulting Fees From Transactions With Related Party			9,000,000	8,000,000
Related party receivable or payable [Abstract]
Accounts receivable	6,235,000		6,235,000		10,457,000
Accounts payable	$ 5,555,000		$ 5,555,000		$ 5,095,000
Related Party Transaction, Description of Transaction			Keylink is the Company’s 5% joint venture partner in two of the Company’s Shanghai manufacturing facilities.