FEDERAL INCOME TAXES (Details 1) (USD $)	12 Months Ended
	May 31, 2013	May 31, 2012
FEDERAL INCOME TAXES [Abstract]
Net operating loss carryforward	$ 1,965,370	$ 2,548,931
Depreciation and amortization, financial reporting in excess of tax	443,177	617,466
Deferred compensation accrual	244,800	244,800
Stock compensation costs	18,164
Allowance for doubtful accounts	34,000	17,000
Gross Deferred Tax Asset	2,705,511	3,428,197
Valuation allowance	(1,546,511)	(2,843,197)
Net Deferred Tax Asset	$ 1,159,000	$ 585,000