Quarterly report pursuant to Section 13 or 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)

v3.10.0.1
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
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Restricted Stock [Member]        
Anti-dilutive Securities (in shares) 37,012 65,700 37,012 65,700
Employee Stock Option [Member]        
Anti-dilutive Securities (in shares) 976,271 1,044,286 976,271 1,044,286
Warrant [Member]        
Anti-dilutive Securities (in shares) 90,000 90,000 90,000 90,000