Note 3 - Loans (Details Textual) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)
Interest Receivable	$ 872		$ 872		$ 732	$ 581
Financing Receivable, Nonaccrual	817		817		1,090	1,187
Financing Receivable, Troubled Debt Restructuring	1,314		1,314		1,269	1,740
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend	73		73		174	175
Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount, Total	$ 7		7		$ 29	33
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down		$ 0	$ 80	$ 0		$ 0
Financing Receivable, Modifications, Number of Contracts		0	1	0	0	3
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0	0	0		0
Threshold Amount of Loans Outstanding to Perform Credit Analysis	$ 100		$ 100		$ 100
Non-accrual Loans [Member]
Financing Receivable, Nonaccrual					761	$ 948
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Nonaccrual	18		18		249
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Nonaccrual	80		80		$ 80	$ 239
Non-accrual Loans [Member]
Financing Receivable, Nonaccrual	$ 719		$ 719

The threshold amount of loans outstanding balance that will trigger the credit analysis.

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

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Amount of financing receivable modified as troubled debt restructuring.

+ References

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of financing receivable on nonaccrual status.

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- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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- Definition

Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.

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Amount of restructured debt contingently payable based on the occurrence of future events or circumstances.

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