Organization and Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2012
Buildings [Member] | Maximum [Member]
Summary of estimated useful lives property and equipment
Property, plant and equipment, Useful life	40 years
Buildings [Member] | Minimum [Member]
Summary of estimated useful lives property and equipment
Property, plant and equipment, Useful life	25 years
Furniture and fixtures [Member] | Maximum [Member]
Summary of estimated useful lives property and equipment
Property, plant and equipment, Useful life	10 years
Furniture and fixtures [Member] | Minimum [Member]
Summary of estimated useful lives property and equipment
Property, plant and equipment, Useful life	5 years
Capitalized software [Member] | Maximum [Member]
Summary of estimated useful lives property and equipment
Property, plant and equipment, Useful life	7 years
Capitalized software [Member] | Minimum [Member]
Summary of estimated useful lives property and equipment
Property, plant and equipment, Useful life	2 years
Equipment [Member] | Maximum [Member]
Summary of estimated useful lives property and equipment
Property, plant and equipment, Useful life	7 years
Equipment [Member] | Minimum [Member]
Summary of estimated useful lives property and equipment
Property, plant and equipment, Useful life	3 years