Significant Accounting Policies Narrative (Details)	12 Months Ended
	Dec. 31, 2012
Computer Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of property, plant, and equipment	4 years
Equipment and Furniture [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of property, plant, and equipment	4 years
Equipment and Furniture [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life of property, plant, and equipment	10 years
Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of property, plant, and equipment	4 years
Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life of property, plant, and equipment	7 years