Summary of Business and Significant Accounting Policies (Tables)

12 Months Ended

May 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of cash and cash equivalents

	2020		2019
Cash in banks	$	9,677,848	$	3,072,218
Money market funds		52,174		622,771
	$	9,730,022	$	3,694,989

Schedule of assets measured at fair value on recurring basis

	Level 1		Level 2		Level 3		Total
May 31, 2020
Equity Securities	$	50,344	$	-	$	-	$	50,344
	$	50,344	$	-	$	-	$	50,344

	Level 1		Level 2		Level 3		Total
May 31, 2019
Certificates of Deposit	$	-	$	492,000	$	-	$	492,000
Equity Securities		35,232		-		-		35,232
	$	35,232	$	492,000	$	-	$	527,232

Schedule of deposit and marketable securities

			Gross		Gross
			Unrealized		Unrealized
	Amortized		Holding		Holding		Recorded
	Cost		Gains		Losses		Value
May 31, 2020
Current
Equity Securities	$	16,866	$	33,478	$	-	$	50,344
	$	16,866	$	33,478	$	-	$	50,344
May 31, 2019
Current
Certificates of Deposit	$	492,000	$	-	$	-	$	492,000
Equity Securities		16,866		18,366		-		35,232
	$	508,866	$	18,366	$	-	$	527,232

Schedule of useful lives of assets

Equipment	3 years
Furniture and fixtures	3 years
Automobiles	3 years
Leasehold improvements	Lesser of lease term or useful life