Note 2 - Securities (Details Textual) $ in Thousands	12 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)
Available-for-sale Securities Income Tax Provision on Gross Realized Gains	$ 71	$ 69
Available-for-sale Securities Pledged as Collateral	$ 55,932	55,140
Available-for-sale, Qualitative Disclosure, Number of Positions	252
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	100
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	7
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities	$ 0	$ 0