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
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Employee Stock Option [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares) 2,134,214 1,131,768
Common Stock Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares) 425,274 401,446
Restricted Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares) 12,500 0