Consolidated Condensed Statements of Comprehensive Income (Loss) - USD ($)	12 Months Ended
	May 31, 2014	May 31, 2013
Net Income (loss)
Net Income (loss)	$ (1,847,712)	$ (1,956,697)
Accretion of Mandatorily Redeemable Convertible Preferred Stock, including accrued dividends	(77,811)	(74,774)
Accrued dividends on Series C Preferred Stock equity	(990,788)	(915,335)
Income (Loss)	(1,068,599)	(990,109)
Net loss attributable to common stockholders	(2,916,311)	(2,946,806)
Other comprehensive income (loss):
Reclassification of investments from Held to Maturity to Avaialble for Sale
Net unrealized gain of available-for-sale investments arising during period	36,909	(43,844)
Reclassification adjustment for realized loss included in net loss	5,215	(7,736)
Net unrealized loss attributable to available-for-sale investments recognized in other comprehensive income (loss)	42,124	(51,580)
Comprehensive loss attributable to common stockholders	$ (2,874,187)	$ (2,998,386)