Significant Accounting Policies (Equipment) (Details)	6 Months Ended
	Jun. 30, 2011
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life, minimum years	10
Property, plant and equipment, useful life, maximum years	40
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life, minimum years	2
Property, plant and equipment, useful life, maximum years	20
Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life, minimum years	3
Property, plant and equipment, useful life, maximum years	7
Manufacturing Equipment Excluding Precious Metals [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life, minimum years	2
Property, plant and equipment, useful life, maximum years	15
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life, minimum years	5
Property, plant and equipment, useful life, maximum years	10
Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life, minimum years	5
Property, plant and equipment, useful life, maximum years	20