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Basis of Presentation and Summary of Significant Accounting Policies (Details 2) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Assets held for sale
Fair market value of assets held for sale	$ 1,931,000	$ 2,000,000
Reduction in carrying value of assets held for sale	100,000
Proceeds from sale of equipment	400,000
Gain on sale of equipment	$ 300,000

The difference between the proceeds received and the carrying value of the long-lived asset. If the proceeds received exceeds the carrying value of the long-lived asset, then there is a gain. If the proceeds received is less than the carrying value of the long-lived asset, then there is a loss.

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