Note 6 - Investments - Investments Carried at Cost (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016
Collateralized Mortgage Backed Securities [Member]
Mortgage-backed investment, Carrying Cost	$ 115	$ 116
Mortgage-backed investment, Fair Value	130	131
Federal Reserve Bank Stock, Carrying Cost	1,955	1,955
Federal Home Loan Bank Stock, Carrying Cost	1,886	1,886
Federal Home Loan Bank Stock, Fair Value	1,886	1,886
Investments, Carrying Cost	3,956	3,957
Investments, Fair Value	$ 3,971	$ 3,972