Cash and Cash Equivalents (Tables)

6 Months Ended

Nov. 30, 2016

Cash and Cash Equivalents [Abstract]

Summary of cash and cash equivalents

	November 30,  2016		May 31,  2016
Cash in banks	$	4,134,320	$	3,974,007
Money market funds		562,745		540,150
	$	4,697,065	$	4,514,157