Note 2 - Basic and Diluted Loss Per Share - Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net loss	$ (542,301)	$ (319,103)	$ (1,758,560)	$ (314,975)
Denominator for basic loss per share – weighted average shares (in shares)	1,845,000	1,845,000	1,845,000	1,845,000
Dilutive effect of employee stock options and other warrants (in shares)
Denominator for diluted loss per share – adjusted weighted average shares (in shares)	1,845,000	1,845,000	1,845,000	1,845,000
Basic loss per share (in dollars per share)	$ (0.29)	$ (0.17)	$ (0.95)	$ (0.17)
Diluted loss per share (in dollars per share)	$ (0.29)	$ (0.17)	$ (0.95)	$ (0.17)