Note 4 - Loans - Loans by Class Modified as Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)
Number of Contracts	2	3
Pre-Modification Outstanding Recorded Investment	$ 199	$ 1,030
Post-Modification Outstanding Recorded Investment	$ 235	$ 1,030
Commercial Portfolio Segment [Member]
Number of Contracts	1	2
Pre-Modification Outstanding Recorded Investment	$ 38	$ 518
Post-Modification Outstanding Recorded Investment	$ 176	$ 518
Commercial Real Estate Portfolio Segment [Member] \| Other Commercial Real Estate Loans [Member]
Number of Contracts	1	1
Pre-Modification Outstanding Recorded Investment	$ 161	$ 512
Post-Modification Outstanding Recorded Investment	$ 59	$ 512

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=118936363&loc=SL6953676-111524

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Amount, after troubled debt restructuring, of modified financing receivable.

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Amount, before troubled debt restructuring, of financing receivable to be modified.

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