Significant Accounting Policies (Details 2)	12 Months Ended
Dec. 31, 2012
Land and Building [Member]
Property, Plant and Equipment, Useful Life	20 years
Computer Hardware Software [Member]
Property, Plant and Equipment, Useful Life	3 years
Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life	5 years
Mobile Equipment [Member]
Property, Plant and Equipment, Useful Life	3 years

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

No definition available.

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration