Annual report pursuant to Section 13 and 15(d)

Note 1 - Nature of Operations and Summary of Significant Accounting Policies - Potential Shares of Common Stock Excluded from Diluted Net Loss Per Share (Details)

v3.8.0.1
Note 1 - Nature of Operations and Summary of Significant Accounting Policies - Potential Shares of Common Stock Excluded from Diluted Net Loss Per Share (Details) - shares
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Restricted Stock [Member]    
Anti-dilutive Securities (in shares) 63,700 92,415
Employee Stock Option [Member]    
Anti-dilutive Securities (in shares) 1,003,916 953,075
Warrant [Member]    
Anti-dilutive Securities (in shares) 90,000 90,000