Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended
Aug. 31, 2017	Aug. 31, 2016
Income Statement [Abstract]
Sales	$ 10,287,075	$ 7,844,261
Cost of Sales	8,388,176	6,876,443
Gross Profit	1,898,899	967,818
General, Selling and Administrative Expenses	831,403	723,029
Operating Income	1,067,496	244,789
Other Income (Expense):
Other income	8,263
Interest expense	(324,677)	(236,631)
Income before Income Taxes	751,082	8,158
Provision for (Benefit from) Income Taxes	220,800	(18,850)
Net Income	530,282	27,008
Income Attributable to Variable Interest Entity	(61,053)	(59,379)
Preferred Dividends	(94,521)	(85,068)
Net Income (Loss) Attributable to Common Stockholders	$ 374,708	$ (117,439)
Income (Loss) Per Share of Common Stock - Basic and Diluted	$ 0.01	$ (0.00)
Weighted Average Shares of Common Stock Outstanding - Basic	28,361,201	28,202,884
Weighted Average Shares of Common Stock Outstanding - Diluted	28,979,740	28,202,884

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

Name:	us-gaap_CostOfGoodsSold
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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.

+ References

No definition available.