v3.3.1.900
Note 13 - Stock Option and Incentive Plan (Tables)
9 Months Ended 12 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
   

Number of

Restricted Shares

   

Weighted-Average

Grant Date

Fair Value

 

Outstanding and not vested beginning balance as of January 1, 2015

    7,186     $ 2.16  

Granted

        $  

Forfeited/cancelled

        $  

Released/vested

    (7,186 )   $ 2.16  

Outstanding and not vested as of September 30, 2015

        $  
   

Number of

Restricted Shares

   

Weighted-Average

Grant Date

Fair Value

 

Outstanding and not vested beginning balance as of January 1, 2013

    48,073     $ 2.50  

Granted

    2,500,000     $ 0.03  

Forfeited/cancelled

    (21,798 )   $ 2.46  

Released/vested

    (635,323 )   $ 0.08  

Outstanding and not vested beginning balance as of January 1, 2014

    1,890,952     $ 0.05  

Granted

        $  

Forfeited/cancelled

        $  

Released/vested

    (1,883,766 )   $ 0.04  

Outstanding and not vested as of December 31, 2014

    7,186     $ 2.16  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
   

Number of

Shares Subject

to Option

   

Weighted-

Average Exercise

Price

 

Outstanding as of January 1, 2015

    37,034,483     $ 0.03  

Granted

        $  

Forfeited/cancelled/expired

    37,034,483     $ 0.03  

Exercised

        $  

Outstanding as of September 30, 2015

        $  

Exercisable as of September 30, 2015

        $  
   

Number of

Shares Subject To

Option 2014

   

Weighted-Average

Exercise Price

   

Number of

Shares Subject To

Option 2013

   

Weighted-Average

Exercise Price

 

Outstanding beginning balance

    6,618,233     $ 0.11       679,744     $ 2.82  

Granted during the year

    30,456,250       0.02       6,400,000       0.03  

Forfeited/cancelled/expired during the year

    (40,000 )     5.15       (461,511 )     3.29  

Exercised during the year

                       

Outstanding at end of year

    37,034,483     $ 0.03       6,618,233     $ 0.11  

Exercisable at end of year

    5,934,303     $ 0.09       2,330,650     $ 0.28  

Outstanding and expected to vest

    36,916,502     $ 0.03       6 191,212     $ 0.11  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]  
   

Years Ended

December 31,

 
   

2014

   

2013

 

Weighted-average volatility

    185.0 %     105.5 %

Expected dividends

    0.0 %     0.0 %

Expected life (in years)

 

3.5

   

2.0

 

Weighted-average risk-free interest rate

    1.1 %     0.30 %
Schedule of Nonvested Share Activity [Table Text Block]  
   

Non-Vested

Stock Options

   

Weighted-Average

Grant Date

Fair Value

 

Outstanding as of January 1, 2014

    4,287,583     $ 0.02  

Granted

    30,456,250     $ 0.02  

Forfeited/cancelled

    (40,000 )   $ 3.04  

Released/vested

    (3,637,403 )   $ 0.02  

Outstanding as of December 31, 2014

    31,066,430     $ 0.02  
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]  
           

Options Outstanding

   

Vested Options

 
           

Number
Outstanding

   

Weighted-
Average
Remaining
Contractual Life
(in years)

   

Weighted-
Average
Exercise
Price

   

Number
Outstanding

   

Weighted-
Average
Exercise
Price

 
      $0.0192        12,450,000       4.6     $ 0.02       358,320     $ 0.02  
  $0.020  - $0.023       18,000,000       4.6     $ 0.02       1,125,000     $ 0.02  
      $0.0296        6,400,000       3.8     $ 0.0296       4,266,500     $ 0.0296  
  $0.11 - $5.32       184,483       1.3     $ 1.95       184,483     $ 1.95  
  $0.0192 - $5.32       37,034,483       4.4     $ 0.03       5,934,303     $ 0.09