Significant Customers (Details)	Dec. 31, 2011 Sharp Electronics Corporation [Member]	Dec. 31, 2010 AU Optronics Corporation [Member]
Significant Customer [Line Items]
Percentage of consolidated net sales	10.00%	11.00%

The percentage of net product revenue to total net revenue from the sale of goods as of year end.

No definition available.

Name:	us-gaap_SalesRevenueGoodsNetPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant