Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities (Details)

v3.7.0.1
Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities (Details) - shares
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Employee Stock Option [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares) 2,287,572 1,126,287
Common Stock Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares) 642,622 506,379
Restricted Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares) 6,250 39,494