CONSOLIDATED CONDENSED BALANCE SHEETS PARENTHETICALS (USD $)	Aug. 31, 2013	May 31, 2013
Parentheticals
Allowance for uncollectible accounts	$ 29	$ 29
Redeemable common stock, par value	$ 0.10	$ 0.10
Redeemable common Stock, shares issued	50,000	50,000
Redeemable common Stock, shares outstanding	50,000	50,000
Common Stock, par value	$ 0.10	$ 0.10
Common Stock, shares authorized	20,000,000	20,000,000
Common Stock, shares issued	875,135	1,045,135
Common Stock, shares outstanding	875,135	1,045,135
Treasury stock, par value	$ 0.10	$ 0.10
Treasury stock, shares	170,000	170,000