Note 11 - Loss per Share - Reconciliation of the Amounts Used in Calculating Basic and Diluted Net Loss per Common Share (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Loss available to common shareholders	$ (717,246)	$ (51,034)
Loss available to common shareholders, shares (in shares)	11,208,308	11,201,760
Loss available to common shareholders, per share amount (in dollars per share)	$ (0.06)
Effect of dilutive stock options, shares (in shares)
Diluted net loss per common share	$ (717,246)	$ (51,034)
Diluted net loss per common share, shares (in shares)	11,208,308	11,201,760
Diluted net loss per common share, per share amount (in dollars per share)	$ (0.06)