Note 6 - Short-term Borrowings - Schedule of Repurchase Agreements (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Pledged Financial Instruments, Securities for Repurchase Agreements	$ 25,293	$ 20,440
Repurchase Agreements	23,986	19,129
US Government-sponsored Enterprises Debt Securities [Member]
Pledged Financial Instruments, Securities for Repurchase Agreements	2,015	2,066
Residential Mortgage Backed Securities [Member]
Pledged Financial Instruments, Securities for Repurchase Agreements	20,923	16,864
Collateralized Mortgage Obligations [Member]
Pledged Financial Instruments, Securities for Repurchase Agreements	$ 2,355	$ 1,510