Cash and Cash Equivalents (Tables)

9 Months Ended

Feb. 28, 2015

Cash and Cash Equivalents [Abstract]

Summary of cash and cash equivalents

	February 28,  2015		May 31,  2014
Cash in banks	$	1,872,078	$	2,279,148
Money market funds		568,245		562,819
	$	2,440,323	$	2,841,967