Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Feb. 28, 2014	Feb. 28, 2013
Cash Flows from Operating Activities:
Net income	$ 1,474,078	$ 1,277,759
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,008,959	995,749
Deferred income taxes	(301,000)	(237,400)
Stock-based compensation	40,068	40,068
Changes in receivables	543,481	629,751
Changes in related party receivables	(358,746)	(949,320)
Changes in inventory	(1,835,297)	(152,669)
Changes in prepaid expenses and other	(91,294)	(109,302)
Change in other assets	2,785	2,484
Changes in accounts payable and accrued expenses	616,053	15,273
Net cash provided by operating activities	1,099,087	1,512,393
Cash Flows from Investing Activities:
Purchase of property and equipment	(2,301,788)	(320,651)
Cash Flows from Financing Activities:
Proceeds from long-term debt	13,337,500
Payments on long-term debt and capitalized leases	(8,190,518)	(939,014)
Issuance cost of long-term debt	(110,996)
Payments on advances from related party	(92,000)
Preferred dividends paid	(3,469,039)
Distributions by variable interest entity	(256,318)	(65,306)
Net cash provided by (used in) financing activities	1,218,629	(1,004,320)
Net Increase in Cash	15,928	187,422
Cash, beginning of period	366,896	194,400
Cash, end of period	382,824	381,822
Non-Cash Activities:
Acquisition of equipment in exchange for net related party receivable	1,087,302
Reduction in carrying value of equipment resulting from capital lease termination	212,312
Preferred dividend accrual	24,932	244,863
Supplemental Information:
Interest paid	$ 322,631	$ 329,737