Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Loss per Share - Reconciliation of the Amounts Used in Calculating Basic and Diluted Net Loss per Common Share (Details)

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Note 7 - Loss per Share - Reconciliation of the Amounts Used in Calculating Basic and Diluted Net Loss per Common Share (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Loss available to common shareholders $ (34,620) $ (208,602) $ (160,959) $ (399,455)
Loss available to common shareholders, shares (in shares) 11,211,760 11,207,804 11,211,760 11,204,799
Loss available to common shareholders, per share amount (in dollars per share) $ (0.02) $ (0.01) $ (0.04)
Effect of dilutive stock options, shares (in shares)
Diluted net loss per common share $ (34,620) $ (208,602) $ (160,959) $ (399,455)
Diluted net loss per common share, shares (in shares) 11,211,760 11,207,804 11,211,760 11,204,799
Diluted net loss per common share, per share amount (in dollars per share) $ (0.02) $ (0.01) $ (0.04)