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Summary of Significant Accounting Policies - Goodwill and Intangible Assets (Details) (USD $)
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6 Months Ended | 12 Months Ended |
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Jun. 30, 2013
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Dec. 31, 2012
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| Goodwill [Line Items] | ||
| Goodwill impairment | $ 0 | $ 1,016,325 |
| Goodwill | 55,239,777 | 48,968,390 |
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Ennovate [Member]
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| Goodwill [Line Items] | ||
| Goodwill | 921,128 | |
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FAME [Member]
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| Goodwill [Line Items] | ||
| Percent of company acquired | 100.00% | |
| Goodwill | 1,886,945 | |
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ESP [Member]
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| Goodwill [Line Items] | ||
| Goodwill | $ 5,089,049 | |
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Minimum [Member]
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| Goodwill [Line Items] | ||
| Intangible assets amortization period | 1 year | |
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Maximum [Member]
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| Goodwill [Line Items] | ||
| Intangible assets amortization period | 14 years |
| X | ||||||||||
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- Definition
Percentage of voting equity interests acquired in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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| X | ||||||||||
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- Definition
Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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