Income Taxes (Details 3) - USD ($)	12 Months Ended
	May 31, 2020	May 31, 2019
Income Tax Disclosure [Abstract]
Balance at beginning of fiscal year	$ 30,000	$ 30,000
Additions based on tax positions related to current year
Additions for tax positions of prior years
Reductions for tax positions of prior years
Settlements
Balance at end of fiscal year	$ 30,000	$ 30,000