LONG-TERM DEBT (Details 1) (USD $)	May 31, 2013	May 31, 2012
LONG-TERM DEBT [Abstract]
Other notes payable	$ 66,979	$ 110,778
Notes payable	11,002,180	12,043,873
Less: Current portion	(1,344,160)	(1,286,312)
Long-term Debt	9,658,020	10,757,561
Capitalized lease payable, due August 15, 2016, 5% interest, monthly payments of $10,625 plus $0.50 per pallet for monthly sales in excess of 12,500	381,727	481,597
Note payable to F&M Bank & Trust Company, prime rate of interest not less than 4.5%, due March 13, 2015, monthly principal payments of $76,561 plus interest
LONG-TERM DEBT [Abstract]
Note payable	4,593,650	5,226,665
Note payable by variable interest entity to F&M Bank & Trust Company, prime rate of interest but not less than 4.75%, due February 13, 2016, monthly installments of $35,512, secured by buildings and land
LONG-TERM DEBT [Abstract]
Note payable	3,366,108	3,623,070
Note payable to BancFirst, prime rate of interest plus 1%
LONG-TERM DEBT [Abstract]
Note payable		8,047
Note payable to Robert Rosene, 7.5% interest, due January 15, 2015
LONG-TERM DEBT [Abstract]
Note payable	2,066,000	2,066,000
Note payable to Warren Kruger, 7.5% interest, due January 15, 2015
LONG-TERM DEBT [Abstract]
Note payable	$ 527,716	$ 527,716