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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