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Note 2 - Significant Accounting Policies (Details) - USD ($)
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Note 2 - Significant Accounting Policies (Details) [Line Items]    
Deferred Tax Assets Reduction Percentage 100.00%  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued $ 0  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense $ 0 $ 0
Centerpoint [Member]    
Note 2 - Significant Accounting Policies (Details) [Line Items]    
Equity Method Investment, Ownership Percentage 58.90%  
Minimum [Member]    
Note 2 - Significant Accounting Policies (Details) [Line Items]    
Property, Plant and Equipment, Useful Life 3 years  
Maximum [Member]    
Note 2 - Significant Accounting Policies (Details) [Line Items]    
Property, Plant and Equipment, Useful Life 20 years