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Stockholders' Equity (Detail) (USD $) | 9 Months Ended | 12 Months Ended |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2011 Issued to Investor [Member] | Dec. 31, 2011 Issued to Placement Agent [Member] | Sep. 30, 2012 Issued to Investor [Member] | Sep. 30, 2012 Issued to Placement Agent [Member] | Sep. 30, 2012 Investor Relations Contract [Member] | Sep. 30, 2012 Investor Relations Contract [Member] | Sep. 30, 2012 Private Placement in January 2012 [Member]
Number of units issued (in Shares) | 517,000 |  | 2,998,267 |  |  |  |  |  |  |  |
Unit, description | 1 share of the Company's common stock and a warrant to purchase 15% of 1 share of the Company's common stock |  | 1 share of its common stock and a warrant to purchase 15% of 1 share of its common stock |  |  |  |  |  |  |  |
Price per unit (in Dollars per share) | $ 4.00 |  | $ 1.50 |  |  |  |  |  |  |  |
Proceeds from Issuance of Private Placement | $ 1,753,849 | $ 3,859,933 | $ 3,859,933 | $ 0 |  |  |  |  |  |  | $ 2,070,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) | 77,550 |  | 449,740 |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item) | 4.50 |  | 2.00 |  |  |  |  |  |  |  |
Warrant call price (in Dollars per share) | $ 5.00 |  | $ 4.00 |  |  |  |  |  |  |  |
Payments of Stock Issuance Costs | 210,000 |  |  |  |  |  |  |  |  |  |
Professional Fees | 110,000 |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 3 years |  | 3 years |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | 67.00% |  | 69.00% |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | 0.34% |  | 0.33% |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | 0.00% |  | 0.00% |  |  |  |  |  |  |  |
Warrants, grant date fair value |  |  |  |  | 178,077 | 178,077 | 131,310 | 131,310 |  |  |
Investor relations contract, shares to be issued (in Shares) |  |  |  |  |  |  |  |  | 50,000 | 100,000 |
Investor relation contract service period |  |  |  |  |  |  |  |  |  | 24 months |
Stock Issued During Period, Shares, Issued for Services (in Shares) |  |  |  |  |  |  |  |  |  | 50,000 |
Share Price (in Dollars per share) |  |  |  |  |  |  |  |  | $ 2.75 | $ 2.75 |
Share-based Compensation | (22,917) | 0 | 0 | 0 |  |  |  |  | 22,917 |  |
Proceeds from Issuance of Private Placement, Gross |  |  | 4,500,000 |  |  |  |  |  |  |  |
Dividends and Interest Paid |  |  | $ 0 | $ 2,172,590 |  |  |  |  |  |  |

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