Note 14 - Variable Interest Entities ("vies"): VARIABLE INTEREST ENTITIES (Details) (USD $)	Feb. 28, 2013	May 31, 2012	Feb. 29, 2012	May 31, 2011
Cash and cash equivalents at beginning of period	$ 4,108,534	$ 3,520,248	$ 3,468,796	$ 4,580,189
Inventories	10,451	18,385
Other receivables and deposits	1,173,402	383,443
Goodwill	610,386	610,386
Property, plant and equipment, net	1,992,311	2,367,320
Accounts payable	1,571,247	715,078
Taxes payable	591,406	450,700
Total liabilities	3,966,349	3,276,407
Variable Interest Entity, Primary Beneficiary
Cash and cash equivalents at beginning of period	2,039,586	3,466,743
Inventories	10,451	18,385
Accounts receivable	758,872	633,009
Income Taxes Receivable	22,950	22,755
Other receivables and deposits	1,024,701	237,490
Goodwill	610,386	610,386
Property, plant and equipment, net	292,622	454,875
Variable Interest Entity, Consolidated, Carrying Amount, Assets	4,759,568	5,443,643
Deferred Revenue	1,082,519	1,441,347
Accounts payable	1,550,778	694,626
Accounts Payable and Other Accrued Liabilities, Current	509,837	467,246
Taxes payable	11,812	44,424
Total liabilities	$ 3,154,946	$ 2,647,643