CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)	May 31, 2014	May 31, 2013
Allowance for doubtful accounts (in Dollars)	$ 30,000	$ 115,730
Preferred Stock, Par Value (in Dollars per share)	$ 0	$ 0
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common stock, par value (in Dollars per share)	$ 0.08	$ 0.08
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	7,543,714	7,274,714
Common stock, shares outstanding	7,543,714	7,274,714