Note 2 - Securities - Amortized Cost and Fair Values of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
U.S. Government-sponsored Mortgage-backed and Related Securities [Member]
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis	$ 65,961
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value	66,942
Pooled Trust Preferred Securities Subject to Mandatory Redemption [Member]
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis	153
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value	429
Available-for-sale Debt Securities, Amortized Cost Basis	153	$ 184
Available-for-sale Securities, Debt Securities	429	540
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	5,906
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	6,040
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	14,602
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	15,194
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	25,276
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	26,256
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	17,850
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	18,508
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis	63,634
Available-for-sale Securities, Debt Maturities, Single Maturity Date	65,998
Available-for-sale Debt Securities, Amortized Cost Basis	129,748	135,781
Available-for-sale Securities, Debt Securities	133,369	137,144
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount	2,820
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value	2,914
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	674
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value	705
Held-to-maturity Securities	3,494	3,655
Held-to-maturity Securities, Fair Value	$ 3,619	$ 3,722