Related Parties (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 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			5.00%	3.00%
Revenue from related parties	$ 190,000	$ 530,000	$ 589,000	$ 851,000
Purchases from related parties	10,731,000	9,317,000	27,890,000	25,736,000
Related party receivable or payable [Abstract]
Accounts receivable	212,000		212,000		204,000
Accounts payable	7,631,000		7,631,000		5,308,000
Related Party Transaction, Description of Transaction			LSC owned approximately 18% of the Company’s outstanding Common Stock as of September 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			1.00%	1.00%
Revenue from related parties	2,638,000	6,007,000	8,387,000	15,450,000
Purchases from related parties	2,290,000	2,125,000	5,956,000	6,252,000
Related Party Transaction Consulting Fees From Transactions With Related Party			13,000,000	12,000,000
Related party receivable or payable [Abstract]
Accounts receivable	5,231,000		5,231,000		10,457,000
Accounts payable	$ 6,289,000		$ 6,289,000		$ 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.