Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
Income Statement [Abstract]
Sales	$ 5,280,480	$ 3,685,044	$ 15,270,671	$ 13,676,492
Cost of Sales	4,574,839	2,431,250	12,743,989	11,428,901
Gross Profit	705,641	1,253,794	2,526,682	2,247,591
General, Selling and Administrative Expenses	601,106	573,099	1,840,574	1,679,041
Operating Income	104,535	680,695	$ 686,108	568,550
Other Income (Expense):
Other income				2,500
Interest expense	(232,105)	(200,151)	$ (619,481)	(611,568)
Total Other Expense, net			(619,481)	(609,068)
Income (Loss) before Income Taxes	(127,570)	480,544	66,627	(40,518)
(Provision) Benefit from Income Taxes	67,750	(143,728)	39,100	71,955
Net Income (Loss)	(59,820)	336,816	105,727	31,437
Income Attributable to Variable Interest Entities, net	(58,912)	(57,820)	(175,249)	(171,119)
Preferred Dividends	(81,796)	(80,137)	(244,741)	(243,082)
Net Income (Loss) Attributable to Common Stockholders	$ (200,528)	$ 198,859	$ (314,263)	$ (382,764)
Income (Loss) Per Share of Common Stock -
Basic and Diluted	$ (0.01)	$ 0.01	$ (0.01)	$ (0.01)
Weighted Average Shares of Common Stock Outstanding -
Basic and Diluted			27,640,033	26,828,417
Basic	27,886,201	27,309,812	27,640,033	26,828,417
Diluted	27,886,201	28,014,651	27,640,033	26,828,417