General form of registration statement for all companies including face-amount certificate companies

Stockholders' Equity (Detail) - Common Stock Warrants

v2.4.0.6
Stockholders' Equity (Detail) - Common Stock Warrants (USD $)
 1 Months Ended 9 Months Ended
Jul. 31, 2012
Sep. 30, 2012
Oct. 31, 2011
Sep. 30, 2011
Dec. 31, 2006
Outstanding, January 1, 2012   1,922,944      
Outstanding, January 1, 2012 (in Dollars per Item)   0.43 0.75 0.01 4.00
Issued 2,727,274 7,607,071      
Issued (in Dollars per share) $ 1.45 $ 1.05      
Exercised, including 158,078 shares withheld on net settled exercises   (584,768)      
Exercised, including 158,078 shares withheld on net settled exercises (in Dollars per share)   $ 0.69      
Outstanding, September 30, 2012   8,945,247      
Outstanding, September 30, 2012 (in Dollars per Item) 1.10 0.94 0.75 0.01 4.00