Weighted Average Shares and Reconciliation (Details) - USD ($)	12 Months Ended
	May 31, 2020	May 31, 2019
Basic earnings per share from continuing operations
Loss available to stockholders, basic	$ (1,842,304)	$ (1,468,432)
Weighted average shares, basic	3,939,833	4,005,795
Per share amount, basic	$ (.47)	$ (0.37)
Effect of dilutive securities stock options, amount	$ 0	$ 0
Effect of dilutive securities stock options	0	0
Diluted earnings per share
Income (loss) available to common stockholders, diluted	$ (1,842,304)	$ (1,468,432)
Weighted average shares, diluted	3,939,833	4,005,795
Per share amount, diluted	$ (0.47)	$ (0.37)