Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended	6 Months Ended
Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2015	Nov. 30, 2014
Income Statement [Abstract]
Sales	$ 4,420,210	$ 3,925,077	$ 9,990,191	$ 9,991,448
Cost of Sales	3,539,834	4,260,438	8,169,150	8,997,651
Gross Profit	880,376	(335,361)	1,821,041	993,797
General, Selling and Administrative Expenses	537,326	491,000	1,239,468	1,105,942
Operating Income (Loss)	$ 343,050	(826,361)	$ 581,573	(112,145)
Other Income (Expense):
Other income		2,500		2,500
Interest expense	$ (191,964)	(202,574)	$ (387,376)	(411,417)
Total Other Expense, net	(191,964)	(200,074)	(387,376)	(408,917)
Income (Loss) before Income Taxes	151,086	(1,026,435)	194,197	(521,062)
Benefit from (Provision for) Income Taxes	(33,935)	368,383	(28,650)	215,683
Net Income (Loss)	117,151	(658,052)	165,547	(305,379)
Income Attributable to Variable Interest Entities, net	(58,544)	(57,042)	(116,337)	(113,299)
Preferred Dividends	(81,027)	(81,027)	(162,945)	(162,945)
Net Loss Attributable to Common Stockholders	$ (22,420)	$ (796,121)	$ (113,735)	$ (581,623)
Loss Per Share of Common Stock -
Basic and Diluted	$ (0.00)	$ (0.03)	$ (0.00)	$ (0.02)
Weighted Average Shares of Common Stock Outstanding -
Basic and Diluted	27,630,432	26,723,564	27,520,217	26,591,666

Total costs related to goods produced and sold during the reporting period.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Interest expense on all other items not previously classified. For example, includes dividends associated with redeemable preferred stock of a subsidiary that is treated as a liability in the parent's consolidated balance sheet.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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