v3.3.1.900
Note 13 - Stock Option and Incentive Plan (Details) - Options Outstanding
12 Months Ended
Dec. 31, 2014
$ / shares
shares
Range 1 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, upper range $ 0.0192
Number Outstanding (in Shares) | shares 12,450,000
Weighted-Average Remaining Contractual Life (in years) 4 years 219 days
Weighted-Average Exercise Price $ 0.02
Number Outstanding (in Shares) | shares 358,320
Weighted-Average Exercise Price $ 0.02
Range 2 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, lower range 0.020
Exercise price, upper range $ 0.023
Number Outstanding (in Shares) | shares 18,000,000
Weighted-Average Remaining Contractual Life (in years) 4 years 219 days
Weighted-Average Exercise Price $ 0.02
Number Outstanding (in Shares) | shares 1,125,000
Weighted-Average Exercise Price $ 0.02
Range 3 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, upper range $ 0.0296
Number Outstanding (in Shares) | shares 6,400,000
Weighted-Average Remaining Contractual Life (in years) 3 years 292 days
Weighted-Average Exercise Price $ 0.0296
Number Outstanding (in Shares) | shares 4,266,500
Weighted-Average Exercise Price $ 0.0296
Range 4 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, lower range 0.11
Exercise price, upper range $ 5.32
Number Outstanding (in Shares) | shares 184,483
Weighted-Average Remaining Contractual Life (in years) 1 year 109 days
Weighted-Average Exercise Price $ 1.95
Number Outstanding (in Shares) | shares 184,483
Weighted-Average Exercise Price $ 1.95
Range 5 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, lower range 0.0192
Exercise price, upper range $ 5.32
Number Outstanding (in Shares) | shares 37,034,483
Weighted-Average Remaining Contractual Life (in years) 4 years 146 days
Weighted-Average Exercise Price $ 0.03
Number Outstanding (in Shares) | shares 5,934,303
Weighted-Average Exercise Price $ 0.09