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Fair Value Measurement - Fair Value of Liabilities Measured on a Recurring Basis (Details) (Fair Value, Measurements, Recurring [Member], USD $)
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Jun. 30, 2012
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Dec. 31, 2011
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Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
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| Liabilities, Fair Value Disclosure [Abstract] | ||
| Derivative instruments | $ 7,001,960 | $ 6,711,961 |
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Fair Value, Inputs, Level 3 [Member]
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| Liabilities, Fair Value Disclosure [Abstract] | ||
| Contingent consideration | 2,734,464 | 2,734,464 |
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Estimate of Fair Value, Fair Value Disclosure [Member]
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| Liabilities, Fair Value Disclosure [Abstract] | ||
| Total liabilities | $ 9,736,424 | $ 9,446,425 |
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- Definition
Contingent Consideration, Fair Value Disclosure No definition available.
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- Definition
Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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