Activity Related to Convertible Note (Detail) (USD $)
9 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Sep. 30, 2012
Convertible Notes
Debt Instrument [Line Items]      
Proceeds received on issuance of convertible note in 2012     $ 500,000
Discount allocated to warrant     (46,716)
Convertible note after discount     453,284
Accretion of discount to interest expense     (5,840)
Convertible note at September 30, 2012     447,444
Total allocated to additional paid in capital     46,716
Unamortized discount at September 30, 2012 (43,294) (85,720) 40,876
Contractual interest expense for the nine months ended September 30, 2012     $ 15,000
Effective interest rate on convertible note     16.70%