Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Aug. 31, 2015	Aug. 31, 2014
Income Statement [Abstract]
Sales	$ 5,569,981	$ 6,066,371
Cost of Sales	4,629,316	4,737,213
Gross Profit	940,665	1,329,158
General, Selling and Administrative Expenses	702,142	614,942
Operating Income	238,523	714,216
Other Income (Expense):
Interest expense	(195,412)	(208,843)
Income before Income Taxes	43,111	505,373
Benefit from (Provision for) Income Taxes	5,285	(152,700)
Net Income	48,396	352,673
Income Attributable to Variable Interest Entity	(57,793)	(56,257)
Preferred Dividends	(81,918)	(81,918)
Net Income (Loss) Attributable to Common Stockholders	$ (91,315)	$ 214,498
Income (Loss) Attributable to Common Stockholders:
Per Share of Common Stock - Basic and Diluted	$ 0.00	$ 0.01
Weighted Average Shares of Common Stock Outstanding -
Basic	27,411,201	26,461,201
Diluted	27,411,201	28,085,729