Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2016	Nov. 30, 2015
Income Statement [Abstract]
Sales	$ 9,221,711	$ 4,420,210	$ 17,065,972	$ 9,990,191
Cost of Sales	7,992,441	3,539,834	14,868,884	8,169,150
Gross Profit	1,229,270	880,376	2,197,088	1,821,041
General, Selling and Administrative Expenses	664,275	537,326	1,387,304	1,239,468
Operating Income	564,995	343,050	809,784	581,573
Other Expense:
Interest expense	(306,169)	(191,964)	(542,800)	(387,376)
Income before Income Taxes	258,826	151,086	266,984	194,197
Provision for Income Taxes	73,400	33,935	54,550	28,650
Net Income	185,426	117,151	212,434	165,547
Income Attributable to Variable Interest Entities, net	(60,173)	(58,544)	(119,552)	(116,337)
Preferred Dividends	(84,144)	(81,027)	(169,212)	(162,945)
Net Income (Loss) Attributable to Common Stockholders	$ 41,109	$ (22,420)	$ (76,330)	$ (113,735)
Income (Loss) Per Share of Common Stock - Basic and Diluted	$ 0.00	$ (0.00)	$ (0.00)	$ (0.00)
Weighted Average Shares of Common Stock Outstanding - Basic and Diluted			28,283,332	27,520,217
Weighted Average Shares of Common Stock Outstanding - Basic	28,361,201	27,630,432	28,283,332	27,520,217
Weighted Average Shares of Common Stock Outstanding - Diluted	28,940,368	27,630,432	28,283,332	27,520,217