Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	May 31, 2012	May 31, 2011
Cash Flows from Operating Activities:
Net Income (Loss)	$ 2,491,650	$ (847,204)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	1,165,795	1,015,561
Increase in deferred tax asset	(585,000)	0
Loss on disposition of equipment	131,500	0
Stock based compensation	0	71,976
Changes in accounts receivable	(919,284)	(816,629)
Changes in inventory	(413,081)	106,386
Changes in prepaid expenses	25,900	(2,317)
Changes in accounts payable and accrued expenses	321,709	587,461
Other	(2,640)	1,095
Net cash provided by operating activities	2,216,549	116,329
Cash Flows from Investing Activities:
Purchase of property and equipment	(801,960)	(1,171,849)
Debt issue costs	0	(18,727)
Net cash used in investing activities	(801,960)	(1,190,576)
Cash Flows from Financing Activities:
Proceeds from notes and advances payable to related parties	0	500,000
Payments on notes and advances payable to related parties	(99,900)	(626,501)
Proceeds from long-term debt	0	425,000
Payments on notes and advances payable	(1,301,037)	(2,043,326)
Proceeds from long-term of variable interest entities	0	3,908,372
Payments on long-term debt by variable interest entities	0	(1,376,883)
Capital contributions by variable interest entity	75,000	293,256
Dividends paid by variable interest entity	(63,672)	0
Net cash provided by (used in) financing activities	(1,389,609)	1,079,918
Net Increase in Cash	24,980	5,671
Cash, beginning of year	169,420	163,749
Cash, end of year	$ 194,400	$ 169,420