Note 13 - Fair Value (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Impaired Financing Receivable, Recorded Investment, Total	$ 2,060	$ 2,234
Impaired Financing Receivable, Related Allowance	29	44
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Total		71
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Gross		103
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Valuation Allowance		32
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Write Down		32
Other Real Estate Owned, Fair Value Disclosure	0
Collateral Dependent Loans [Member]
Impaired Financing Receivable, Related Allowance		0
Fair Value, Measurements, Nonrecurring [Member]
Assets, Fair Value Disclosure	0
Impaired Financing Receivable, Recorded Investment, Total	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		130
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member]
Allowance for Loan and Lease Losses, Period Increase (Decrease), Total	$ (17)	$ 314