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Note 3 - Securities Available for Sale (Details) - USD ($)
1 Months Ended 12 Months Ended
Sep. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
May. 31, 2014
Note 3 - Securities Available for Sale (Details) [Line Items]          
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax   $ 186,000 $ 45,000    
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities   91,000 0 $ 0  
Available-for-sale Securities, Gross Realized Gain (Loss)   481,000 0 $ 316,000  
Mutual Fund Investments [Member]          
Note 3 - Securities Available for Sale (Details) [Line Items]          
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax   6,000 45,000    
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities $ 91,000        
Reduction In Dividend From Mutual Fund Investment, Percentage         11.00%
Equity Securities [Member]          
Note 3 - Securities Available for Sale (Details) [Line Items]          
Available-for-sale Securities, Gross Realized Gain (Loss)   572,000      
Proceeds from Sale of Available-for-sale Securities   994,000      
Early Call Provision of a Corporate Bond [Member]          
Note 3 - Securities Available for Sale (Details) [Line Items]          
Available-for-sale Securities Pledged as Collateral   $ 66,100,000 $ 7,900,000