Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Loss per Share (Details Textual)

v3.19.2
Note 6 - Loss per Share (Details Textual) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Share-based Payment Arrangement, Option [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 185,234 540,462 229,741 559,498