Note 8 - Short-term Borrowings - Schedule of Repurchase Agreements (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Securities, available-for-sale	$ 279,605	$ 296,347
Repurchase Agreements	23,783	20,025
Asset Pledged as Collateral [Member] | Securities Sold under Agreements to Repurchase [Member]
Securities, available-for-sale	27,019	21,967
US Government-sponsored Enterprises Debt Securities [Member]
Securities, available-for-sale	25,692	26,265
US Government-sponsored Enterprises Debt Securities [Member] | Asset Pledged as Collateral [Member] | Securities Sold under Agreements to Repurchase [Member]
Securities, available-for-sale	3,730	3,331
Residential Mortgage-Backed Securities [Member]
Securities, available-for-sale	89,635	102,183
Residential Mortgage-Backed Securities [Member] | Asset Pledged as Collateral [Member] | Securities Sold under Agreements to Repurchase [Member]
Securities, available-for-sale	19,648	11,954
Commercial Mortgage-Backed Securities [Member]
Securities, available-for-sale	6,795	7,301
Commercial Mortgage-Backed Securities [Member] | Asset Pledged as Collateral [Member] | Securities Sold under Agreements to Repurchase [Member]
Securities, available-for-sale	$ 3,641	$ 6,682