Certificates of Deposit and Marketable Securities (Tables)

6 Months Ended

Nov. 30, 2016

Certificates of Deposit and Marketable Securities [Abstract]

Summary of assets measured at fair value on recurring basis

November 30, 2016	Level 1		Level 2		Level 3		Total
Certificates of Deposit	$	-	$	1,511,000	$	-	$	1,511,000
Equity Securities		27,760		-		-		27,760
	$	27,760	$	1,511,000	$	-	$	1,538,760

May 31, 2016	Level 1		Level 2		Level 3		Total
Certificates of Deposit	$	-	$	1,528,000	$	-	$	1,528,000
Equity Securities		25,272		-		-		25,272
	$	25,272	$	1,528,000	$	-	$	1,553,272

Summary of marketable securities

November 30, 2016	Amortized  Cost		Gross  Unrealized  Holding  Gains		Gross  Unrealized  Holding  Losses		Recorded  Value
Current
Certificates of Deposit	$	1,511,000	$	-	$	-	$	1,511,000
Equity Securities		16,866		10,894		-		27,760
	$	1,527,866	$	10,894	$	-	$	1 ,538,760

May 31, 2016	Amortized  Cost		Gross  Unrealized  Holding  Gains		Gross  Unrealized  Holding  Losses		Recorded  Value
Current
Certificates of Deposit	$	1,528,000	$	-	$	-	$	1,528,000
Equity Securities		16,866		8,406		-		25,272
	$	1,544,866	$	8,406	$	-	$	1,553,272