Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Stock Options Activity (Details)

v3.4.0.3
Note 7 - Stock Options Activity (Details) - $ / shares
 3 Months Ended 12 Months Ended
Mar. 31, 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) $ 1.98 $ 2.01
Outstanding, Weighted Average Remaining Contractual Life 9 years 36 days 8 years 255 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 295,000  
Granted at Market Price, Weighted Average Exercise Price (in dollars per share) $ 4.09  
Exercised, Number of Shares (in shares) (1,334)  
Exercised, Weighted Average Exercise Price (in dollars per share) $ 1.20  
Cancelled, Number of Shares (in shares) (2,500)  
Cancelled, Weighted Average Exercise Price (in dollars per share) $ 7.81  
Outstanding, Number of Shares (in shares) 768,625 477,459
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 4.21 $ 4.30
Exercisable, Number of Shares (in shares) 196,046  
Exercisable, Weighted Average Exercise Price (in dollars per share) $ 2.85  
Exercisable, Weighted Average Fair Value (in dollars per share) $ 1.26  
Exercisable, Weighted Average Remaining Contractual Life 8 years 36 days