Quarterly report pursuant to sections 13 or 15(d)

Note 7 - Convertible Notes Payable (Detail) - Convertible Notes Payable by Liability Classification

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Note 7 - Convertible Notes Payable (Detail) - Convertible Notes Payable by Liability Classification (USD $)
Sep. 30, 2012
Dec. 31, 2011
Debt, Current [Member] | March 2010 Notes [Member] | Convertible Note Payable [Member]
   
Convertible notes payable, principal   $ 4,071,000
Convertible notes payable, unamortized discount   (117,405)
Debt, Current [Member] | March 2010 Notes [Member]
   
Convertible notes payable, net   3,953,595
Debt, Current [Member] | Convertible Note Payable [Member]
   
Convertible notes payable, principal   4,071,000
Convertible notes payable, unamortized discount   (117,405)
Debt, Current [Member]
   
Convertible notes payable, net   3,953,595
Debt, Long-term [Member] | 2011 Unit Offering Notes [Member] | Convertible Note Payable [Member]
   
Convertible notes payable, principal   1,625,000
Convertible notes payable, unamortized discount   (316,610)
Debt, Long-term [Member] | 2011 Unit Offering Notes [Member]
   
Convertible notes payable, net   1,308,390
Debt, Long-term [Member] | April 2011 Note [Member] | Convertible Note Payable [Member]
   
Convertible notes payable, principal 2,000,000 2,000,000
Debt, Long-term [Member] | April 2011 Note [Member]
   
Convertible notes payable, net 2,000,000 2,000,000
Debt, Long-term [Member] | Convertible Note Payable [Member]
   
Convertible notes payable, principal 2,000,000 3,625,000
Convertible notes payable, unamortized discount   (316,610)
Debt, Long-term [Member]
   
Convertible notes payable, net $ 2,000,000 $ 3,308,390