Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Stock Options Activity (Details)

v3.5.0.2
Note 7 - Stock Options Activity (Details) - $ / shares
 6 Months Ended 12 Months Ended
Jun. 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) $ 2.07 $ 2.01
Outstanding, Weighted Average Remaining Contractual Life 8 years 36 days 8 years 255 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 390,000  
Granted at Market Price, Weighted Average Exercise Price (in dollars per share) $ 3.86  
Exercised, Number of Shares (in shares) (33,374)  
Exercised, Weighted Average Exercise Price (in dollars per share) $ 1.97  
Cancelled, Number of Shares (in shares) (46,130)  
Cancelled, Weighted Average Exercise Price (in dollars per share) $ 2.59  
Outstanding, Number of Shares (in shares) 787,955 477,459
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 4.28 $ 4.30
Exercisable, Number of Shares (in shares) 315,775  
Exercisable, Weighted Average Exercise Price (in dollars per share) $ 3.63  
Exercisable, Weighted Average Fair Value (in dollars per share) $ 2.22  
Exercisable, Weighted Average Remaining Contractual Life 8 years 73 days