Summary of Significant Accounting Policies (Details 2)	12 Months Ended
Dec. 31, 2011 Y
Machinery and Equipment
Depreciable Assets
Estimated useful life, low end of the range (in years)	3
Estimated useful life, high end of the range (in years)	12
Building
Depreciable Assets
Estimated useful life, low end of the range (in years)	20
Estimated useful life, high end of the range (in years)	40

The maximum useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

No definition available.

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLifeMaximum
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration