Note 4 - Loans - Loans by Class Modified as Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Financing Receivable, Modifications, Number of Contracts	1	2
Pre-Modification Outstanding Recorded Investment	$ 314	$ 199
Post-Modification Outstanding Recorded Investment	$ 314	$ 235
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications, Number of Contracts		1
Pre-Modification Outstanding Recorded Investment		$ 38
Post-Modification Outstanding Recorded Investment		$ 176
Residential Portfolio Segment [Member] \| Residential Real Estate Owner Occupied Loans [Member]
Financing Receivable, Modifications, Number of Contracts	1
Pre-Modification Outstanding Recorded Investment	$ 314
Post-Modification Outstanding Recorded Investment	$ 314
Commercial Real Estate Portfolio Segment [Member] \| Other Commercial Real Estate Loans [Member]
Financing Receivable, Modifications, Number of Contracts		1
Pre-Modification Outstanding Recorded Investment		$ 161
Post-Modification Outstanding Recorded Investment		$ 59

Number of financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

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