Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Equity - Stock Options Activity (Details)

v3.5.0.2
Note 7 - Equity - Stock Options Activity (Details) - $ / shares
 9 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Outstanding, Number of Shares (in shares) 477,459  
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 4.30  
Outstanding, Weighted Average Fair Value (in dollars per share) $ 1.94 $ 2.01
Outstanding, Weighted Average Remaining Contractual Life 8 years 146 days 8 years 255 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 590,000  
Granted at Market Price, Weighted Average Exercise Price (in dollars per share) $ 3.31  
Exercised, Number of Shares (in shares) (34,154)  
Exercised, Weighted Average Exercise Price (in dollars per share) $ 1.95  
Cancelled, Number of Shares (in shares) (133,935)  
Cancelled, Weighted Average Exercise Price (in dollars per share) $ 4.08  
Outstanding, Number of Shares (in shares) 899,370 477,459
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 3.77 $ 4.30
Exercisable, Number of Shares (in shares) 353,692  
Exercisable, Weighted Average Exercise Price (in dollars per share) $ 4.08  
Exercisable, Weighted Average Fair Value (in dollars per share) $ 2.38  
Exercisable, Weighted Average Remaining Contractual Life 7 years 328 days