Provision For Income Taxes: Note 13 - Provision For Income Taxes (Details) (USD $)	12 Months Ended
	May 31, 2013	May 31, 2012
Details
Income before provision for income taxes	$ 334,085	$ 587,924
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	83,521	146,981
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	25.00%	25.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	18,219	(27,729)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	5.40%	(4.70%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount	71,690	60,008
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent	21.50%	10.20%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount	111,250	150,678
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent	33.30%	25.60%
Provision for income taxes	$ 284,680	$ 329,938
Effective Income Tax Rate Reconciliation, Percent	85.20%	56.10%