Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Nov. 30, 2012	Nov. 30, 2011	Nov. 30, 2012	Nov. 30, 2011
Sales	$ 5,059,118	$ 6,213,501	$ 12,187,984	$ 11,997,125
Cost of Sales	4,175,786	5,140,878	9,779,803	9,860,901
Gross Profit	883,332	1,072,623	2,408,181	2,136,224
General, Selling and Administrative Expenses	542,444	487,358	1,101,083	899,345
Operating Income	340,888	585,265	1,307,098	1,236,879
Other Income (Expense):
Other Income (Expense)	(3,500)	(3,891)	6,500	(6,841)
Interest Expense	(210,511)	(212,544)	(419,354)	(478,897)
Total Other Expense, net	(214,011)	(216,435)	(412,854)	(485,738)
Income Before Income Taxes	126,877	368,830	894,244	751,141
Benefit From Income Taxes	9,900	0	209,300	0
Net Income	136,777	368,830	1,103,544	751,141
Income Attributable to Variable Interest Entities, net	(52,256)	(50,555)	(104,210)	(46,180)
Preferred Dividends	(81,918)	(81,027)	(164,726)	(81,027)
Net income available to common stockholders:	$ 2,603	$ 237,248	$ 834,608	$ 623,934
Income Available to Common Stockholders:
Earnings per share: Basic	$ 0.00	$ 0.01	$ 0.03	$ 0.02
Earnings per share: Diluted	$ 0.00	$ 0.01	$ 0.03	$ 0.02
Weighted-average shares outstanding: Basic	26,111,201	26,111,201	26,111,201	26,111,201
Weighted-average shares outstanding: Diluted shares	27,447,565	26,111,201	27,241,970	26,111,201