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Summary Of Significant Accounting Policies - Additional Information (Detail)
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3 Months Ended | 9 Months Ended | 12 Months Ended | 9 Months Ended | ||||||
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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
Restricted Stock [Member]
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Sep. 30, 2013
Percentage of major customers revenue accounted for 10% or more of total revenues
Customer
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Sep. 30, 2012
Percentage of major customers revenue accounted for 10% or more of total revenues
Customer
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Dec. 31, 2012
Percentage of major customers revenue accounted for 10% or more of total revenues
Customer
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Dec. 31, 2011
Percentage of major customers revenue accounted for 10% or more of total revenues
Customer
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Sep. 30, 2013
Percentage of major customers revenue accounted for 10% or more of total revenues
Settled amount
Customer
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Sep. 30, 2012
Percentage of major customers revenue accounted for 10% or more of total revenues
Settled amount
Customer
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| Significant Accounting Policies [Line Items] | ||||||||||
| Anti dilutive securities | 18,624,308 | 1,445,000 | ||||||||
| Dilutive effects of convertible preferred stock | 14,999,000 | 14,999,000 | ||||||||
| Number of major customers accounted for 10% or more of total revenues | 3 | 2 | 2 | 4 | ||||||
| Concentration percentage | 89.00% | 41.00% | 52.00% | 85.00% | 74.00% | |||||
| Number of counter parties | 1 | 3 | ||||||||