Significant Accounting Policies (Details) - Reconciliation of the numerators and denominators of the basic and diluted earnings per share computations - USD ($)	3 Months Ended		6 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2019	Nov. 30, 2018
Numerator:
Loss from continuing operations (in Dollars)	$ (485,260)	$ (477,244)	$ (991,556)	$ (928,984)
Denominator for basic net loss Per common share	9,817,363	9,061,617	9,780,713	8,995,575
Effect of dilutive securities:
Options
Denominator for diluted net loss per common share	9,817,363	9,061,617	9,780,713	8,995,575
Basic net loss per common share (in Dollars per share)	$ (0.05)	$ (0.05)	$ (0.10)	$ (0.10)
Diluted net loss per common share (in Dollars per share)	$ (0.05)	$ (0.05)	$ (0.10)	$ (0.10)