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Acquisitions (Details) (Roche [Member], USD $)	Jun. 30, 2012
Roche [Member]
Summary of estimated fair values at the date of acquisition
Current assets	$ 432,709
Property and equipment	7,215,206
Intangible assets	1,090,000
Other noncurrent assets	6,264
Current liabilities	(414,122)
Noncurrent liabilities	(1,570,072)
Gain on purchase	(1,576,106)
Total purchase consideration	$ 5,183,879

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The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

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