Annual report pursuant to Section 13 and 15(d)

Note 2 - Summary of Significant Accounting Policies (Tables)

v2.4.1.9
Note 2 - Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2014
Accounting Policies [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
   

Quoted Prices in Active Markets (Level 1)

   

Significant Observable Inputs (Level 2)

   

Significant Unobservable Inputs (Level 3)

   

Total Fair Value

 
                                 

December 31, 2014

                               

Derivative liabilities - warrants

  $ -     $ -     $ 2,198,162     $ 2,198,162  
                                 

December 31, 2013

                               

Derivative liabilities - warrants

  $ -     $ -     $ 3,747,858     $ 3,747,858  
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]
           

Estimated

 
   

Carrying Values

   

Fair Value

 

Senior secured note payable, including accrued interest

  $ 4,456,665     $ 4,456,665  

2014 junior secured notes payable, including accrued interest

    3,475,826       3,845,125  

2010 junior secured notes payable, including accrued interest

    754,328       2,305,171  
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
   

As of December 31,

 
   

2014

   

2013

 
                 

Stock options

    10,343,309       7,430,225  

Warrants

    20,759,136       12,136,865  

Shares under convertible note agreements

    -       542,325  
      31,102,445       20,109,415