Note 13 - Variable Interest Entities ("vies"): Schedule Of Vie Consolidated Statements Of Income Table Textblock (Details) (USD $)	3 Months Ended		6 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2013	Nov. 30, 2012
Revenue	$ 1,410,600	$ 1,511,465	$ 2,905,479	$ 3,612,860
Other income and gains	103,920	60,714	146,302	78,296
Service costs (Not including service costs payable to intra-group companies)	415,971	946,135	1,232,276	2,407,744
Administrative and other expenses	135,123	143,354	323,263	459,206
Personnel cost	189,468	204,861	405,298	429,211
Depreciation expense	169,497	161,343	336,915	322,397
Income tax income/(provision for income taxes)	75,982	74,677	71,593	88,925
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure
Revenue			2,703,230	3,333,155
Other income and gains			61,259	45,359
Service costs (Not including service costs payable to intra-group companies)			(1,222,529)	(2,391,397)
Administrative and other expenses			(211,256)	(195,650)
Personnel cost			(324,531)	(353,123)
Depreciation expense			(109,874)	(110,273)
Income before provision for income taxes (Not including service costs payable to intra-group companies)			896,299	328,071
Income tax income/(provision for income taxes)			720	(53,238)
Net Income			$ 897,019	$ 274,833